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Finding the Fourth Proportional to 261,262.32, 391,844.26 and 101,337.95

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Solution

The fourth proportional to 261,262.32, 391,844.26 and 101,337.95 is: 151,987.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,262.32 : 391,844.26 = 101,337.95 : x
  2. Step 2: Convert to fraction form
    261,262.32/391,844.26 = 101,337.95/x
  3. Step 3: Cross multiply
    261,262.32x = 391,844.26 × 101,337.95
  4. Step 4: Simplify right side
    261,262.32x = 39,708,694,027.67
  5. Step 5: Solve for x
    x = 39,708,694,027.67/261,262.32
  6. Step 6: Final answer
    x = 151,987.83

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.