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Finding the Fourth Proportional to 218,394.32, 327,439.49 and 96,748.79

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Solution

The fourth proportional to 218,394.32, 327,439.49 and 96,748.79 is: 145,055.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,394.32 : 327,439.49 = 96,748.79 : x
  2. Step 2: Convert to fraction form
    218,394.32/327,439.49 = 96,748.79/x
  3. Step 3: Cross multiply
    218,394.32x = 327,439.49 × 96,748.79
  4. Step 4: Simplify right side
    218,394.32x = 31,679,372,334.78
  5. Step 5: Solve for x
    x = 31,679,372,334.78/218,394.32
  6. Step 6: Final answer
    x = 145,055.85

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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.