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Finding the Fourth Proportional to 227.92, 340.22 and 197.60

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Solution

The fourth proportional to 227.92, 340.22 and 197.60 is: 294.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    227.92 : 340.22 = 197.60 : x
  2. Step 2: Convert to fraction form
    227.92/340.22 = 197.60/x
  3. Step 3: Cross multiply
    227.92x = 340.22 × 197.60
  4. Step 4: Simplify right side
    227.92x = 67,227.47
  5. Step 5: Solve for x
    x = 67,227.47/227.92
  6. Step 6: Final answer
    x = 294.96

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.