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Finding the Fourth Proportional to 225,630.27, 311,369.83 and 123,659.78

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Solution

The fourth proportional to 225,630.27, 311,369.83 and 123,659.78 is: 170,650.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,630.27 : 311,369.83 = 123,659.78 : x
  2. Step 2: Convert to fraction form
    225,630.27/311,369.83 = 123,659.78/x
  3. Step 3: Cross multiply
    225,630.27x = 311,369.83 × 123,659.78
  4. Step 4: Simplify right side
    225,630.27x = 38,503,924,676.44
  5. Step 5: Solve for x
    x = 38,503,924,676.44/225,630.27
  6. Step 6: Final answer
    x = 170,650.53

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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.