Home / 387,781.52-582,217.22-198,377.75

Finding the Fourth Proportional to 387,781.52, 582,217.22 and 198,377.75

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Solution

The fourth proportional to 387,781.52, 582,217.22 and 198,377.75 is: 297,845.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,781.52 : 582,217.22 = 198,377.75 : x
  2. Step 2: Convert to fraction form
    387,781.52/582,217.22 = 198,377.75/x
  3. Step 3: Cross multiply
    387,781.52x = 582,217.22 × 198,377.75
  4. Step 4: Simplify right side
    387,781.52x = 115,498,938,211.88
  5. Step 5: Solve for x
    x = 115,498,938,211.88/387,781.52
  6. Step 6: Final answer
    x = 297,845.39

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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.