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Finding the Third Proportional to 125,928 and 187,272

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Solution

The third proportional to 125,928 and 187,272 is: 278,498.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,928 : 187,272 = 187,272 : x
  2. Step 2: Convert to fraction form
    125,928/187,272 = 187,272/x
  3. Step 3: Cross multiply
    125,928x = 187,272 × 187,272
  4. Step 4: Simplify right side
    125,928x = 35,070,801,984
  5. Step 5: Solve for x
    x = 35,070,801,984/125,928
  6. Step 6: Final answer
    x = 278,498.84

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.