What is a Proportion?
A proportion is when two ratios or rates are equal to each other.
Vocabulary:
Terms, End Terms and Middle terms:
a:b = c:d
or
"a" is the 1st term, "b" is the 2nd term, "c" is the 3rd term & "d" is the 4th term
The terms "a" and "d" are END TERMS
The terms "b" and "c" are MIDDLE TERMS
A quick check for proportional Situations:Property of the Cross Products
In every proportion, the product of the end terms = the product of the middle terms