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Finding the Fourth Proportional to 361,839.72, 542,808.96 and 125,118.84

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Solution

The fourth proportional to 361,839.72, 542,808.96 and 125,118.84 is: 187,695.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,839.72 : 542,808.96 = 125,118.84 : x
  2. Step 2: Convert to fraction form
    361,839.72/542,808.96 = 125,118.84/x
  3. Step 3: Cross multiply
    361,839.72x = 542,808.96 × 125,118.84
  4. Step 4: Simplify right side
    361,839.72x = 67,915,627,416.81
  5. Step 5: Solve for x
    x = 67,915,627,416.81/361,839.72
  6. Step 6: Final answer
    x = 187,695.33

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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.