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Finding the Fourth Proportional to 218,238.43, 327,371.48 and 68,484.63

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Solution

The fourth proportional to 218,238.43, 327,371.48 and 68,484.63 is: 102,731.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,238.43 : 327,371.48 = 68,484.63 : x
  2. Step 2: Convert to fraction form
    218,238.43/327,371.48 = 68,484.63/x
  3. Step 3: Cross multiply
    218,238.43x = 327,371.48 × 68,484.63
  4. Step 4: Simplify right side
    218,238.43x = 22,419,914,851.56
  5. Step 5: Solve for x
    x = 22,419,914,851.56/218,238.43
  6. Step 6: Final answer
    x = 102,731.29

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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.