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Finding the Fourth Proportional to 218,418.88, 327,628.04 and 68,672.24

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Solution

The fourth proportional to 218,418.88, 327,628.04 and 68,672.24 is: 103,008.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,418.88 : 327,628.04 = 68,672.24 : x
  2. Step 2: Convert to fraction form
    218,418.88/327,628.04 = 68,672.24/x
  3. Step 3: Cross multiply
    218,418.88x = 327,628.04 × 68,672.24
  4. Step 4: Simplify right side
    218,418.88x = 22,498,951,393.61
  5. Step 5: Solve for x
    x = 22,498,951,393.61/218,418.88
  6. Step 6: Final answer
    x = 103,008.27

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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.