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Finding the Fourth Proportional to 232,743.80, 349,115.70 and 138,265.40

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Solution

The fourth proportional to 232,743.80, 349,115.70 and 138,265.40 is: 207,398.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    232,743.80 : 349,115.70 = 138,265.40 : x
  2. Step 2: Convert to fraction form
    232,743.80/349,115.70 = 138,265.40/x
  3. Step 3: Cross multiply
    232,743.80x = 349,115.70 × 138,265.40
  4. Step 4: Simplify right side
    232,743.80x = 48,270,621,906.78
  5. Step 5: Solve for x
    x = 48,270,621,906.78/232,743.80
  6. Step 6: Final answer
    x = 207,398.10

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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.