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Finding the Third Proportional to 81,331 and 166,626

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Solution

The third proportional to 81,331 and 166,626 is: 341,373.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,331 : 166,626 = 166,626 : x
  2. Step 2: Convert to fraction form
    81,331/166,626 = 166,626/x
  3. Step 3: Cross multiply
    81,331x = 166,626 × 166,626
  4. Step 4: Simplify right side
    81,331x = 27,764,223,876
  5. Step 5: Solve for x
    x = 27,764,223,876/81,331
  6. Step 6: Final answer
    x = 341,373.20

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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.