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Finding the Fourth Proportional to 383,956.47, 575,932.27 and 131,114.97

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Solution

The fourth proportional to 383,956.47, 575,932.27 and 131,114.97 is: 196,671.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,956.47 : 575,932.27 = 131,114.97 : x
  2. Step 2: Convert to fraction form
    383,956.47/575,932.27 = 131,114.97/x
  3. Step 3: Cross multiply
    383,956.47x = 575,932.27 × 131,114.97
  4. Step 4: Simplify right side
    383,956.47x = 75,513,338,767.85
  5. Step 5: Solve for x
    x = 75,513,338,767.85/383,956.47
  6. Step 6: Final answer
    x = 196,671.62

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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.