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Finding the Fourth Proportional to 323,539.76, 485,013.96 and 273,939.44

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Solution

The fourth proportional to 323,539.76, 485,013.96 and 273,939.44 is: 410,658.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,539.76 : 485,013.96 = 273,939.44 : x
  2. Step 2: Convert to fraction form
    323,539.76/485,013.96 = 273,939.44/x
  3. Step 3: Cross multiply
    323,539.76x = 485,013.96 × 273,939.44
  4. Step 4: Simplify right side
    323,539.76x = 132,864,452,594.58
  5. Step 5: Solve for x
    x = 132,864,452,594.58/323,539.76
  6. Step 6: Final answer
    x = 410,658.81

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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.