Home / 231,020.85-318,721.09-150,517.38

Finding the Fourth Proportional to 231,020.85, 318,721.09 and 150,517.38

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Solution

The fourth proportional to 231,020.85, 318,721.09 and 150,517.38 is: 207,656.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,020.85 : 318,721.09 = 150,517.38 : x
  2. Step 2: Convert to fraction form
    231,020.85/318,721.09 = 150,517.38/x
  3. Step 3: Cross multiply
    231,020.85x = 318,721.09 × 150,517.38
  4. Step 4: Simplify right side
    231,020.85x = 47,973,063,417.54
  5. Step 5: Solve for x
    x = 47,973,063,417.54/231,020.85
  6. Step 6: Final answer
    x = 207,656.86

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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.