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Finding the Third Proportional to 129,957 and 284,730

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Solution

The third proportional to 129,957 and 284,730 is: 623,830.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,957 : 284,730 = 284,730 : x
  2. Step 2: Convert to fraction form
    129,957/284,730 = 284,730/x
  3. Step 3: Cross multiply
    129,957x = 284,730 × 284,730
  4. Step 4: Simplify right side
    129,957x = 81,071,172,900
  5. Step 5: Solve for x
    x = 81,071,172,900/129,957
  6. Step 6: Final answer
    x = 623,830.75

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.