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Finding the Fourth Proportional to 299,382.68, 449,145.72 and 99,704.72

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Solution

The fourth proportional to 299,382.68, 449,145.72 and 99,704.72 is: 149,580.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,382.68 : 449,145.72 = 99,704.72 : x
  2. Step 2: Convert to fraction form
    299,382.68/449,145.72 = 99,704.72/x
  3. Step 3: Cross multiply
    299,382.68x = 449,145.72 × 99,704.72
  4. Step 4: Simplify right side
    299,382.68x = 44,781,948,251.80
  5. Step 5: Solve for x
    x = 44,781,948,251.80/299,382.68
  6. Step 6: Final answer
    x = 149,580.96

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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.