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Finding the Fourth Proportional to 330,375.38, 455,918.02 and 179,472.38

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Solution

The fourth proportional to 330,375.38, 455,918.02 and 179,472.38 is: 247,671.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,375.38 : 455,918.02 = 179,472.38 : x
  2. Step 2: Convert to fraction form
    330,375.38/455,918.02 = 179,472.38/x
  3. Step 3: Cross multiply
    330,375.38x = 455,918.02 × 179,472.38
  4. Step 4: Simplify right side
    330,375.38x = 81,824,689,406.02
  5. Step 5: Solve for x
    x = 81,824,689,406.02/330,375.38
  6. Step 6: Final answer
    x = 247,671.88

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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.