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Finding the Fourth Proportional to 299,869.80, 449,882.52 and 89,507.76

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Solution

The fourth proportional to 299,869.80, 449,882.52 and 89,507.76 is: 134,284.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,869.80 : 449,882.52 = 89,507.76 : x
  2. Step 2: Convert to fraction form
    299,869.80/449,882.52 = 89,507.76/x
  3. Step 3: Cross multiply
    299,869.80x = 449,882.52 × 89,507.76
  4. Step 4: Simplify right side
    299,869.80x = 40,267,976,628.36
  5. Step 5: Solve for x
    x = 40,267,976,628.36/299,869.80
  6. Step 6: Final answer
    x = 134,284.87

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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.