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Finding the Fourth Proportional to 449,043.20, 673,658.40 and 149,616.80

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Solution

The fourth proportional to 449,043.20, 673,658.40 and 149,616.80 is: 224,456.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,043.20 : 673,658.40 = 149,616.80 : x
  2. Step 2: Convert to fraction form
    449,043.20/673,658.40 = 149,616.80/x
  3. Step 3: Cross multiply
    449,043.20x = 673,658.40 × 149,616.80
  4. Step 4: Simplify right side
    449,043.20x = 100,790,614,101.12
  5. Step 5: Solve for x
    x = 100,790,614,101.12/449,043.20
  6. Step 6: Final answer
    x = 224,456.39

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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.