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Finding the Fourth Proportional to 331,375.80, 457,298.55 and 180,472.80

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Solution

The fourth proportional to 331,375.80, 457,298.55 and 180,472.80 is: 249,052.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,375.80 : 457,298.55 = 180,472.80 : x
  2. Step 2: Convert to fraction form
    331,375.80/457,298.55 = 180,472.80/x
  3. Step 3: Cross multiply
    331,375.80x = 457,298.55 × 180,472.80
  4. Step 4: Simplify right side
    331,375.80x = 82,529,949,754.44
  5. Step 5: Solve for x
    x = 82,529,949,754.44/331,375.80
  6. Step 6: Final answer
    x = 249,052.43

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1.5x scale

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.