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Finding the Fourth Proportional to 299,719.92, 449,580.24 and 89,352.66

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Solution

The fourth proportional to 299,719.92, 449,580.24 and 89,352.66 is: 134,029.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,719.92 : 449,580.24 = 89,352.66 : x
  2. Step 2: Convert to fraction form
    299,719.92/449,580.24 = 89,352.66/x
  3. Step 3: Cross multiply
    299,719.92x = 449,580.24 × 89,352.66
  4. Step 4: Simplify right side
    299,719.92x = 40,171,190,327.44
  5. Step 5: Solve for x
    x = 40,171,190,327.44/299,719.92
  6. Step 6: Final answer
    x = 134,029.10

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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.