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Finding the Fourth Proportional to 299,856.68, 449,862.84 and 89,494.61

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Solution

The fourth proportional to 299,856.68, 449,862.84 and 89,494.61 is: 134,265.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,856.68 : 449,862.84 = 89,494.61 : x
  2. Step 2: Convert to fraction form
    299,856.68/449,862.84 = 89,494.61/x
  3. Step 3: Cross multiply
    299,856.68x = 449,862.84 × 89,494.61
  4. Step 4: Simplify right side
    299,856.68x = 40,260,299,419.29
  5. Step 5: Solve for x
    x = 40,260,299,419.29/299,856.68
  6. Step 6: Final answer
    x = 134,265.14

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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.