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Finding the Fourth Proportional to 445,400.64, 667,498.32 and 235,195.92

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Solution

The fourth proportional to 445,400.64, 667,498.32 and 235,195.92 is: 352,475.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,400.64 : 667,498.32 = 235,195.92 : x
  2. Step 2: Convert to fraction form
    445,400.64/667,498.32 = 235,195.92/x
  3. Step 3: Cross multiply
    445,400.64x = 667,498.32 × 235,195.92
  4. Step 4: Simplify right side
    445,400.64x = 156,992,881,470.85
  5. Step 5: Solve for x
    x = 156,992,881,470.85/445,400.64
  6. Step 6: Final answer
    x = 352,475.65

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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.