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Finding the Fourth Proportional to 299,753.52, 449,649.72 and 89,412.72

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Solution

The fourth proportional to 299,753.52, 449,649.72 and 89,412.72 is: 134,124.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,753.52 : 449,649.72 = 89,412.72 : x
  2. Step 2: Convert to fraction form
    299,753.52/449,649.72 = 89,412.72/x
  3. Step 3: Cross multiply
    299,753.52x = 449,649.72 × 89,412.72
  4. Step 4: Simplify right side
    299,753.52x = 40,204,404,512.44
  5. Step 5: Solve for x
    x = 40,204,404,512.44/299,753.52
  6. Step 6: Final answer
    x = 134,124.88

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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.