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Finding the Fourth Proportional to 361,351.86, 541,817.69 and 136,729.65

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Solution

The fourth proportional to 361,351.86, 541,817.69 and 136,729.65 is: 205,014.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,351.86 : 541,817.69 = 136,729.65 : x
  2. Step 2: Convert to fraction form
    361,351.86/541,817.69 = 136,729.65/x
  3. Step 3: Cross multiply
    361,351.86x = 541,817.69 × 136,729.65
  4. Step 4: Simplify right side
    361,351.86x = 74,082,540,374.78
  5. Step 5: Solve for x
    x = 74,082,540,374.78/361,351.86
  6. Step 6: Final answer
    x = 205,014.97

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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.