Finding the Third Proportional to 272 and 291.50
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Solution
The third proportional to 272 and 291.50 is: 312.40
Step by Step Solution
- Step 1: Write the proportion equation
272 : 291.50 = 291.50 : x - Step 2: Convert to fraction form
272/291.50 = 291.50/x - Step 3: Cross multiply
272x = 291.50 × 291.50 - Step 4: Simplify right side
272x = 84,972.25 - Step 5: Solve for x
x = 84,972.25/272 - Step 6: Final answer
x = 312.40
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These problems maintain the same ratio (1.07) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.