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Finding the Fourth Proportional to 398,851.43, 597,778.24 and 199,227.54

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Solution

The fourth proportional to 398,851.43, 597,778.24 and 199,227.54 is: 298,592.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,851.43 : 597,778.24 = 199,227.54 : x
  2. Step 2: Convert to fraction form
    398,851.43/597,778.24 = 199,227.54/x
  3. Step 3: Cross multiply
    398,851.43x = 597,778.24 × 199,227.54
  4. Step 4: Simplify right side
    398,851.43x = 119,093,888,220.73
  5. Step 5: Solve for x
    x = 119,093,888,220.73/398,851.43
  6. Step 6: Final answer
    x = 298,592.11

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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.