2. Anne is painting her house light blue
Anne is painting her house light blue. To make the color she wants, she must add 3 cans of white paint to every 2 cans of blue paint. How many cans of white paint will she need to mix with 6 cans of blue?
3 white = x white
2 blue blue

3. Ryan is making a fruit drink
Ryan is making a fruit drink. The directions say to mix 5 cups of water with 2 scoops of powdered fruit mix. How many cups of water should he use with 9 scoops of fruit mix?
5 water = x water
2 mix mix

4. Donna is running around a track. It takes her 10 minutes to run 6 laps
Donna is running around a track. It takes her 10 minutes to run 6 laps. If she keeps running at the same speed, how long will it take her to run 5 laps?
10 minutes = x minutes
6 laps laps

5. Mark’s model train can go 12 laps around its track in 4 minutes
Mark’s model train can go 12 laps around its track in 4 minutes. If it runs at the same speed, how many laps can the train go in 9 minutes?
12 laps = minutes
4 minutes x laps

6. Using Percent Proportion
Is = % Of

8. Percent Proportion

9. Percent
Means ‘of a hundred’

10. The Percent Proportion(s)
You will use a proportion to solve most percent problems.
Remember: the percent will always be related to a hundred.

11. The Percent Proportion(s)
‘of’ is the number with the word ‘of’
‘is’ is the number with the word ‘is’ is %
The percent % is always over 100.
100 is always on the bottom. = of
100
This proportion can be used when dealing with simple percent statements such as:
“What is 10% of 100?”
“10 is what percent of 100?”
“10 is 10% of what number?”

12. Cross multiply to get the answer.
50 is what percent of 230? is of %
100 =
Use the proportion. 50 x = or
x = 21.7%
50 is 21.7% of 230
230
100
Cross multiply to get the answer.

13. Cross multiply to get the answer.
What is 85% of 40? is of %
100 =
Use the proportion. x 85 = 40
100
x = 34
34 is 85% of 40
Cross multiply to get the answer.

14. Cross multiply to get the answer.
25% of what number is 400? is of %
100 =
Use the proportion.
400 25 = x
100
x = 1600
25% of 1600 is 400
Cross multiply to get the answer.

15. Cross multiply to get the answer.
What is 175% of 80? is of %
100 =
Use the proportion. x
175 = 80
100
Cross multiply to get the answer.
x = 140
140 is 175% of 80

16. 19 is 25% of what number?
What percent of 256 is 64?
What is 45% of 178?

17. Cross multiply to get the answer.
19 is 25% of what number? is of %
100 =
Use the proportion. 19 25 = x
100
x = 76
19 is 25% of 76
Cross multiply to get the answer.

18. Cross multiply to get the answer.
What percent of 256 is 64? is of %
100 =
Use the proportion. 64 x =
256
100
x = 25%
25% of 256 is 64
Cross multiply to get the answer.

19. Cross multiply to get the answer.
What is 45% of 178? is of %
100 =
Use the proportion. x 45 =
178
100
x = 80.1
80.1 is 45% of 178
Cross multiply to get the answer.