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Finding the Fourth Proportional to 363,885.35, 545,828.03 and 275,311.85

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Solution

The fourth proportional to 363,885.35, 545,828.03 and 275,311.85 is: 412,967.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,885.35 : 545,828.03 = 275,311.85 : x
  2. Step 2: Convert to fraction form
    363,885.35/545,828.03 = 275,311.85/x
  3. Step 3: Cross multiply
    363,885.35x = 545,828.03 × 275,311.85
  4. Step 4: Simplify right side
    363,885.35x = 150,272,923,344.60
  5. Step 5: Solve for x
    x = 150,272,923,344.60/363,885.35
  6. Step 6: Final answer
    x = 412,967.78

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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.