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Finding the Fourth Proportional to 299,427.80, 449,141.70 and 269,903.30

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Solution

The fourth proportional to 299,427.80, 449,141.70 and 269,903.30 is: 404,854.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,427.80 : 449,141.70 = 269,903.30 : x
  2. Step 2: Convert to fraction form
    299,427.80/449,141.70 = 269,903.30/x
  3. Step 3: Cross multiply
    299,427.80x = 449,141.70 × 269,903.30
  4. Step 4: Simplify right side
    299,427.80x = 121,224,826,997.61
  5. Step 5: Solve for x
    x = 121,224,826,997.61/299,427.80
  6. Step 6: Final answer
    x = 404,854.95

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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.