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Finding the Fourth Proportional to 299,467.20, 449,200.80 and 89,077.80

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Solution

The fourth proportional to 299,467.20, 449,200.80 and 89,077.80 is: 133,616.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,467.20 : 449,200.80 = 89,077.80 : x
  2. Step 2: Convert to fraction form
    299,467.20/449,200.80 = 89,077.80/x
  3. Step 3: Cross multiply
    299,467.20x = 449,200.80 × 89,077.80
  4. Step 4: Simplify right side
    299,467.20x = 40,013,819,022.24
  5. Step 5: Solve for x
    x = 40,013,819,022.24/299,467.20
  6. Step 6: Final answer
    x = 133,616.70

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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.