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Finding the Third Proportional to 126,587 and 190,691

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Solution

The third proportional to 126,587 and 190,691 is: 287,257.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,587 : 190,691 = 190,691 : x
  2. Step 2: Convert to fraction form
    126,587/190,691 = 190,691/x
  3. Step 3: Cross multiply
    126,587x = 190,691 × 190,691
  4. Step 4: Simplify right side
    126,587x = 36,363,057,481
  5. Step 5: Solve for x
    x = 36,363,057,481/126,587
  6. Step 6: Final answer
    x = 287,257.44

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.