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Finding the Third Proportional to 62,831 and 136,720

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Solution

The third proportional to 62,831 and 136,720 is: 297,502.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,831 : 136,720 = 136,720 : x
  2. Step 2: Convert to fraction form
    62,831/136,720 = 136,720/x
  3. Step 3: Cross multiply
    62,831x = 136,720 × 136,720
  4. Step 4: Simplify right side
    62,831x = 18,692,358,400
  5. Step 5: Solve for x
    x = 18,692,358,400/62,831
  6. Step 6: Final answer
    x = 297,502.16

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.