Home / 285,851.62-394,601.85-200,147.50

Finding the Fourth Proportional to 285,851.62, 394,601.85 and 200,147.50

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Solution

The fourth proportional to 285,851.62, 394,601.85 and 200,147.50 is: 276,292.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,851.62 : 394,601.85 = 200,147.50 : x
  2. Step 2: Convert to fraction form
    285,851.62/394,601.85 = 200,147.50/x
  3. Step 3: Cross multiply
    285,851.62x = 394,601.85 × 200,147.50
  4. Step 4: Simplify right side
    285,851.62x = 78,978,573,772.88
  5. Step 5: Solve for x
    x = 78,978,573,772.88/285,851.62
  6. Step 6: Final answer
    x = 276,292.20

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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.