Finding the Third Proportional to 521 and 545
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Solution
The third proportional to 521 and 545 is: 570.11
Step by Step Solution
- Step 1: Write the proportion equation
521 : 545 = 545 : x - Step 2: Convert to fraction form
521/545 = 545/x - Step 3: Cross multiply
521x = 545 × 545 - Step 4: Simplify right side
521x = 297,025 - Step 5: Solve for x
x = 297,025/521 - Step 6: Final answer
x = 570.11
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These problems maintain the same ratio (1.05) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.