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Finding the Fourth Proportional to 225,853.43, 311,675.61 and 123,876.80

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Solution

The fourth proportional to 225,853.43, 311,675.61 and 123,876.80 is: 170,948.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,853.43 : 311,675.61 = 123,876.80 : x
  2. Step 2: Convert to fraction form
    225,853.43/311,675.61 = 123,876.80/x
  3. Step 3: Cross multiply
    225,853.43x = 311,675.61 × 123,876.80
  4. Step 4: Simplify right side
    225,853.43x = 38,609,377,204.85
  5. Step 5: Solve for x
    x = 38,609,377,204.85/225,853.43
  6. Step 6: Final answer
    x = 170,948.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.