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Finding the Third Proportional to 487.13 and 532.13

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Solution

The third proportional to 487.13 and 532.13 is: 581.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    487.13 : 532.13 = 532.13 : x
  2. Step 2: Convert to fraction form
    487.13/532.13 = 532.13/x
  3. Step 3: Cross multiply
    487.13x = 532.13 × 532.13
  4. Step 4: Simplify right side
    487.13x = 283,157.02
  5. Step 5: Solve for x
    x = 283,157.02/487.13
  6. Step 6: Final answer
    x = 581.28

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Why These Related Problems?

These problems maintain the same ratio (1.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.