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Finding the Fourth Proportional to 488,205.20, 731,773.20 and 172,499.60

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Solution

The fourth proportional to 488,205.20, 731,773.20 and 172,499.60 is: 258,560.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,205.20 : 731,773.20 = 172,499.60 : x
  2. Step 2: Convert to fraction form
    488,205.20/731,773.20 = 172,499.60/x
  3. Step 3: Cross multiply
    488,205.20x = 731,773.20 × 172,499.60
  4. Step 4: Simplify right side
    488,205.20x = 126,230,584,290.72
  5. Step 5: Solve for x
    x = 126,230,584,290.72/488,205.20
  6. Step 6: Final answer
    x = 258,560.51

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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.