RATIO
the quantitative relation between two amounts showing the number of times one value contains or is contained within the other.
the quantitative relation between two amounts showing the number of times one value contains or is contained within the other."the ratio of men's jobs to women's is 8 to 1"
PROPORTION
Proportion says that two ratios (or fractions) are equal. Example: 1/3 = 2/6. See: Equivalent Fractions. Proportions.