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Finding the Fourth Proportional to 299,713.70, 449,743.35 and 112,859.30

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Solution

The fourth proportional to 299,713.70, 449,743.35 and 112,859.30 is: 169,354.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,713.70 : 449,743.35 = 112,859.30 : x
  2. Step 2: Convert to fraction form
    299,713.70/449,743.35 = 112,859.30/x
  3. Step 3: Cross multiply
    299,713.70x = 449,743.35 × 112,859.30
  4. Step 4: Simplify right side
    299,713.70x = 50,757,719,660.66
  5. Step 5: Solve for x
    x = 50,757,719,660.66/299,713.70
  6. Step 6: Final answer
    x = 169,354.02

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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.