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Finding the Third Proportional to 38,336 and 81,238

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Solution

The third proportional to 38,336 and 81,238 is: 172,151.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,336 : 81,238 = 81,238 : x
  2. Step 2: Convert to fraction form
    38,336/81,238 = 81,238/x
  3. Step 3: Cross multiply
    38,336x = 81,238 × 81,238
  4. Step 4: Simplify right side
    38,336x = 6,599,612,644
  5. Step 5: Solve for x
    x = 6,599,612,644/38,336
  6. Step 6: Final answer
    x = 172,151.83

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.