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Finding the Fourth Proportional to 272,452.05, 408,680.39 and 94,958.78

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Solution

The fourth proportional to 272,452.05, 408,680.39 and 94,958.78 is: 142,438.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,452.05 : 408,680.39 = 94,958.78 : x
  2. Step 2: Convert to fraction form
    272,452.05/408,680.39 = 94,958.78/x
  3. Step 3: Cross multiply
    272,452.05x = 408,680.39 × 94,958.78
  4. Step 4: Simplify right side
    272,452.05x = 38,807,789,438.32
  5. Step 5: Solve for x
    x = 38,807,789,438.32/272,452.05
  6. Step 6: Final answer
    x = 142,438.97

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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.