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Finding the Fourth Proportional to 187,264.31, 280,765.24 and 68,920.27

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Solution

The fourth proportional to 187,264.31, 280,765.24 and 68,920.27 is: 103,332.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,264.31 : 280,765.24 = 68,920.27 : x
  2. Step 2: Convert to fraction form
    187,264.31/280,765.24 = 68,920.27/x
  3. Step 3: Cross multiply
    187,264.31x = 280,765.24 × 68,920.27
  4. Step 4: Simplify right side
    187,264.31x = 19,350,416,147.41
  5. Step 5: Solve for x
    x = 19,350,416,147.41/187,264.31
  6. Step 6: Final answer
    x = 103,332.11

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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.