1. 8.1 Exploring Ratio & Proportion
Power Standard #4
Use the properties of similarity and the concepts of ratio
and proportion to solve problems (1.1.4)
Power Standard #12
Use the characteristics and properties of right triangles
to solve problems (1.3.1, 1.3.2)

2. Ratio – Comparison of two quantities measured in the same units
The distance to Centralia is about 20 miles compared to about 100 miles to Vancouver.
C:V = 1:5
C to V = 1 to 5
Ratios in class: 1) girls to boys, 2) boys to girls, 3) girls to students
_____ , ______ , ______

4. Proportion – Two or more ratios combined with an equal sign=
solve proportions – product of extremes equal to product of the means.
means
a:b = c:d
extremes

5. 8.1 Exploring Ratio & Proportion

7. 2/16 O.E.
What is the difference between a ratio and a rate?
. Which terms are the means?
Find the average (arithmetic mean) of 16 and 36.