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Finding the Fourth Proportional to 247,458.52, 341,489.10 and 145,495.45

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Solution

The fourth proportional to 247,458.52, 341,489.10 and 145,495.45 is: 200,781.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,458.52 : 341,489.10 = 145,495.45 : x
  2. Step 2: Convert to fraction form
    247,458.52/341,489.10 = 145,495.45/x
  3. Step 3: Cross multiply
    247,458.52x = 341,489.10 × 145,495.45
  4. Step 4: Simplify right side
    247,458.52x = 49,685,109,966.48
  5. Step 5: Solve for x
    x = 49,685,109,966.48/247,458.52
  6. Step 6: Final answer
    x = 200,781.57

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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.