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Finding the Third Proportional to 38,311 and 82,238

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Solution

The third proportional to 38,311 and 82,238 is: 176,531.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,311 : 82,238 = 82,238 : x
  2. Step 2: Convert to fraction form
    38,311/82,238 = 82,238/x
  3. Step 3: Cross multiply
    38,311x = 82,238 × 82,238
  4. Step 4: Simplify right side
    38,311x = 6,763,088,644
  5. Step 5: Solve for x
    x = 6,763,088,644/38,311
  6. Step 6: Final answer
    x = 176,531.25

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.