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Finding the Fourth Proportional to 237,117.84, 327,218.01 and 129,687.54

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Solution

The fourth proportional to 237,117.84, 327,218.01 and 129,687.54 is: 178,966.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    237,117.84 : 327,218.01 = 129,687.54 : x
  2. Step 2: Convert to fraction form
    237,117.84/327,218.01 = 129,687.54/x
  3. Step 3: Cross multiply
    237,117.84x = 327,218.01 × 129,687.54
  4. Step 4: Simplify right side
    237,117.84x = 42,436,098,760.60
  5. Step 5: Solve for x
    x = 42,436,098,760.60/237,117.84
  6. Step 6: Final answer
    x = 178,966.28

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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.