Finding the Third Proportional to 391 and 443.50
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Solution
The third proportional to 391 and 443.50 is: 503.05
Step by Step Solution
- Step 1: Write the proportion equation
391 : 443.50 = 443.50 : x - Step 2: Convert to fraction form
391/443.50 = 443.50/x - Step 3: Cross multiply
391x = 443.50 × 443.50 - Step 4: Simplify right side
391x = 196,692.25 - Step 5: Solve for x
x = 196,692.25/391 - Step 6: Final answer
x = 503.05
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These problems maintain the same ratio (1.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.