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Finding the Fourth Proportional to 363,630.62, 545,109.17 and 185,745.30

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Solution

The fourth proportional to 363,630.62, 545,109.17 and 185,745.30 is: 278,445.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,630.62 : 545,109.17 = 185,745.30 : x
  2. Step 2: Convert to fraction form
    363,630.62/545,109.17 = 185,745.30/x
  3. Step 3: Cross multiply
    363,630.62x = 545,109.17 × 185,745.30
  4. Step 4: Simplify right side
    363,630.62x = 101,251,465,385.68
  5. Step 5: Solve for x
    x = 101,251,465,385.68/363,630.62
  6. Step 6: Final answer
    x = 278,445.93

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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.