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Finding the Third Proportional to 80,866 and 165,730

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Solution

The third proportional to 80,866 and 165,730 is: 339,653.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,866 : 165,730 = 165,730 : x
  2. Step 2: Convert to fraction form
    80,866/165,730 = 165,730/x
  3. Step 3: Cross multiply
    80,866x = 165,730 × 165,730
  4. Step 4: Simplify right side
    80,866x = 27,466,432,900
  5. Step 5: Solve for x
    x = 27,466,432,900/80,866
  6. Step 6: Final answer
    x = 339,653.66

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Why These Related Problems?

These problems maintain the same ratio (2.05) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.