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Finding the Fourth Proportional to 331,151.70, 496,727.55 and 252,419.70

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Solution

The fourth proportional to 331,151.70, 496,727.55 and 252,419.70 is: 378,629.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,151.70 : 496,727.55 = 252,419.70 : x
  2. Step 2: Convert to fraction form
    331,151.70/496,727.55 = 252,419.70/x
  3. Step 3: Cross multiply
    331,151.70x = 496,727.55 × 252,419.70
  4. Step 4: Simplify right side
    331,151.70x = 125,383,819,152.74
  5. Step 5: Solve for x
    x = 125,383,819,152.74/331,151.70
  6. Step 6: Final answer
    x = 378,629.55

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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.