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Finding the Fourth Proportional to 488,067.20, 732,310.28 and 188,757.80

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Solution

The fourth proportional to 488,067.20, 732,310.28 and 188,757.80 is: 283,217.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,067.20 : 732,310.28 = 188,757.80 : x
  2. Step 2: Convert to fraction form
    488,067.20/732,310.28 = 188,757.80/x
  3. Step 3: Cross multiply
    488,067.20x = 732,310.28 × 188,757.80
  4. Step 4: Simplify right side
    488,067.20x = 138,229,276,218.85
  5. Step 5: Solve for x
    x = 138,229,276,218.85/488,067.20
  6. Step 6: Final answer
    x = 283,217.71

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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.