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Finding the Fourth Proportional to 375,531.28, 518,233.44 and 222,644.92

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Solution

The fourth proportional to 375,531.28, 518,233.44 and 222,644.92 is: 307,250.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,531.28 : 518,233.44 = 222,644.92 : x
  2. Step 2: Convert to fraction form
    375,531.28/518,233.44 = 222,644.92/x
  3. Step 3: Cross multiply
    375,531.28x = 518,233.44 × 222,644.92
  4. Step 4: Simplify right side
    375,531.28x = 115,382,042,790.13
  5. Step 5: Solve for x
    x = 115,382,042,790.13/375,531.28
  6. Step 6: Final answer
    x = 307,250.15

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1.5x scale

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.