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Finding the Fourth Proportional to 361,663.32, 542,600.88 and 161,939.19

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Solution

The fourth proportional to 361,663.32, 542,600.88 and 161,939.19 is: 242,956.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,663.32 : 542,600.88 = 161,939.19 : x
  2. Step 2: Convert to fraction form
    361,663.32/542,600.88 = 161,939.19/x
  3. Step 3: Cross multiply
    361,663.32x = 542,600.88 × 161,939.19
  4. Step 4: Simplify right side
    361,663.32x = 87,868,347,000.49
  5. Step 5: Solve for x
    x = 87,868,347,000.49/361,663.32
  6. Step 6: Final answer
    x = 242,956.20

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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.