Home / 387,781.14-582,216.66-198,377.36

Finding the Fourth Proportional to 387,781.14, 582,216.66 and 198,377.36

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Solution

The fourth proportional to 387,781.14, 582,216.66 and 198,377.36 is: 297,844.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,781.14 : 582,216.66 = 198,377.36 : x
  2. Step 2: Convert to fraction form
    387,781.14/582,216.66 = 198,377.36/x
  3. Step 3: Cross multiply
    387,781.14x = 582,216.66 × 198,377.36
  4. Step 4: Simplify right side
    387,781.14x = 115,498,605,414.36
  5. Step 5: Solve for x
    x = 115,498,605,414.36/387,781.14
  6. Step 6: Final answer
    x = 297,844.82

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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.