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Finding the Fourth Proportional to 299,171.29, 448,753.50 and 85,944.43

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Solution

The fourth proportional to 299,171.29, 448,753.50 and 85,944.43 is: 128,915.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,171.29 : 448,753.50 = 85,944.43 : x
  2. Step 2: Convert to fraction form
    299,171.29/448,753.50 = 85,944.43/x
  3. Step 3: Cross multiply
    299,171.29x = 448,753.50 × 85,944.43
  4. Step 4: Simplify right side
    299,171.29x = 38,567,863,768.01
  5. Step 5: Solve for x
    x = 38,567,863,768.01/299,171.29
  6. Step 6: Final answer
    x = 128,915.66

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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.