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Finding the Fourth Proportional to 247,502.62, 341,543.28 and 140,078.60

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Solution

The fourth proportional to 247,502.62, 341,543.28 and 140,078.60 is: 193,302.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,502.62 : 341,543.28 = 140,078.60 : x
  2. Step 2: Convert to fraction form
    247,502.62/341,543.28 = 140,078.60/x
  3. Step 3: Cross multiply
    247,502.62x = 341,543.28 × 140,078.60
  4. Step 4: Simplify right side
    247,502.62x = 47,842,904,600.17
  5. Step 5: Solve for x
    x = 47,842,904,600.17/247,502.62
  6. Step 6: Final answer
    x = 193,302.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.