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Finding the Fourth Proportional to 253,850.32, 380,651.07 and 104,049.86

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Solution

The fourth proportional to 253,850.32, 380,651.07 and 104,049.86 is: 156,023.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,850.32 : 380,651.07 = 104,049.86 : x
  2. Step 2: Convert to fraction form
    253,850.32/380,651.07 = 104,049.86/x
  3. Step 3: Cross multiply
    253,850.32x = 380,651.07 × 104,049.86
  4. Step 4: Simplify right side
    253,850.32x = 39,606,690,542.35
  5. Step 5: Solve for x
    x = 39,606,690,542.35/253,850.32
  6. Step 6: Final answer
    x = 156,023.80

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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.