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Finding the Fourth Proportional to 391,467.80, 587,224.02 and 110,963

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Solution

The fourth proportional to 391,467.80, 587,224.02 and 110,963 is: 166,450.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,467.80 : 587,224.02 = 110,963 : x
  2. Step 2: Convert to fraction form
    391,467.80/587,224.02 = 110,963/x
  3. Step 3: Cross multiply
    391,467.80x = 587,224.02 × 110,963
  4. Step 4: Simplify right side
    391,467.80x = 65,160,138,931.26
  5. Step 5: Solve for x
    x = 65,160,138,931.26/391,467.80
  6. Step 6: Final answer
    x = 166,450.83

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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.