Home / 396,531.27-547,664.31-268,985.43

Finding the Fourth Proportional to 396,531.27, 547,664.31 and 268,985.43

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Solution

The fourth proportional to 396,531.27, 547,664.31 and 268,985.43 is: 371,505.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,531.27 : 547,664.31 = 268,985.43 : x
  2. Step 2: Convert to fraction form
    396,531.27/547,664.31 = 268,985.43/x
  3. Step 3: Cross multiply
    396,531.27x = 547,664.31 × 268,985.43
  4. Step 4: Simplify right side
    396,531.27x = 147,313,719,921.00
  5. Step 5: Solve for x
    x = 147,313,719,921.00/396,531.27
  6. Step 6: Final answer
    x = 371,505.93

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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.