Partitive Proportions A partitive proportion of proportion by parts, describes
a total amount being distributed into two or more
unequal parts.

Flowering and fronteres in the ratio of 1:4:5. How many acres are used for
each type?

METHOD 1
- Use an equation
1. Write an equation that relates the sum of the unequal parts to the whole.
(Let m - the number of acres in each part.)

Evergreen plus flowering plus fruit equals total acres

2. Then find the number of acres in each unequal part.

METHOD 2
- Use separate proportions for each part-to-whole relationship.

1. Find the sum of the parts given in the ratio - 14:5 1+ 4+ 5 =?

2. Write and solve separate proportions for each part-to-whole relationship.

Define variables for each. Let a evergreen trees. b = flowering trees, and C =fruit trees

EVERGREEN
FLOWERING
FRUIT