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Finding the Fourth Proportional to 445,051.40, 667,377.48 and 265,221.68

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Solution

The fourth proportional to 445,051.40, 667,377.48 and 265,221.68 is: 397,713.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,051.40 : 667,377.48 = 265,221.68 : x
  2. Step 2: Convert to fraction form
    445,051.40/667,377.48 = 265,221.68/x
  3. Step 3: Cross multiply
    445,051.40x = 667,377.48 × 265,221.68
  4. Step 4: Simplify right side
    445,051.40x = 177,002,976,439.77
  5. Step 5: Solve for x
    x = 177,002,976,439.77/445,051.40
  6. Step 6: Final answer
    x = 397,713.56

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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.