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Finding the Fourth Proportional to 247,478.52, 341,517.42 and 145,569.72

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Solution

The fourth proportional to 247,478.52, 341,517.42 and 145,569.72 is: 200,884.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,478.52 : 341,517.42 = 145,569.72 : x
  2. Step 2: Convert to fraction form
    247,478.52/341,517.42 = 145,569.72/x
  3. Step 3: Cross multiply
    247,478.52x = 341,517.42 × 145,569.72
  4. Step 4: Simplify right side
    247,478.52x = 49,714,595,204.52
  5. Step 5: Solve for x
    x = 49,714,595,204.52/247,478.52
  6. Step 6: Final answer
    x = 200,884.49

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1.5x scale

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.