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Finding the Third Proportional to 137,220 and 292,872

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Solution

The third proportional to 137,220 and 292,872 is: 625,083.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,220 : 292,872 = 292,872 : x
  2. Step 2: Convert to fraction form
    137,220/292,872 = 292,872/x
  3. Step 3: Cross multiply
    137,220x = 292,872 × 292,872
  4. Step 4: Simplify right side
    137,220x = 85,774,008,384
  5. Step 5: Solve for x
    x = 85,774,008,384/137,220
  6. Step 6: Final answer
    x = 625,083.87

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.