Home / 347,432.20-521,172.60-137,042.80

Finding the Fourth Proportional to 347,432.20, 521,172.60 and 137,042.80

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Solution

The fourth proportional to 347,432.20, 521,172.60 and 137,042.80 is: 205,573.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,432.20 : 521,172.60 = 137,042.80 : x
  2. Step 2: Convert to fraction form
    347,432.20/521,172.60 = 137,042.80/x
  3. Step 3: Cross multiply
    347,432.20x = 521,172.60 × 137,042.80
  4. Step 4: Simplify right side
    347,432.20x = 71,422,952,387.28
  5. Step 5: Solve for x
    x = 71,422,952,387.28/347,432.20
  6. Step 6: Final answer
    x = 205,573.79

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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.