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Finding the Fourth Proportional to 391,375.62, 587,068.83 and 110,892.60

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Solution

The fourth proportional to 391,375.62, 587,068.83 and 110,892.60 is: 166,340.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,375.62 : 587,068.83 = 110,892.60 : x
  2. Step 2: Convert to fraction form
    391,375.62/587,068.83 = 110,892.60/x
  3. Step 3: Cross multiply
    391,375.62x = 587,068.83 × 110,892.60
  4. Step 4: Simplify right side
    391,375.62x = 65,101,588,937.66
  5. Step 5: Solve for x
    x = 65,101,588,937.66/391,375.62
  6. Step 6: Final answer
    x = 166,340.43

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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.