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Finding the Fourth Proportional to 331,479.65, 457,429.82 and 202,633.92

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Solution

The fourth proportional to 331,479.65, 457,429.82 and 202,633.92 is: 279,627.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,479.65 : 457,429.82 = 202,633.92 : x
  2. Step 2: Convert to fraction form
    331,479.65/457,429.82 = 202,633.92/x
  3. Step 3: Cross multiply
    331,479.65x = 457,429.82 × 202,633.92
  4. Step 4: Simplify right side
    331,479.65x = 92,690,797,551.49
  5. Step 5: Solve for x
    x = 92,690,797,551.49/331,479.65
  6. Step 6: Final answer
    x = 279,627.41

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.