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Finding the Fourth Proportional to 227.44, 340.21 and 193.15

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Solution

The fourth proportional to 227.44, 340.21 and 193.15 is: 288.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    227.44 : 340.21 = 193.15 : x
  2. Step 2: Convert to fraction form
    227.44/340.21 = 193.15/x
  3. Step 3: Cross multiply
    227.44x = 340.21 × 193.15
  4. Step 4: Simplify right side
    227.44x = 65,711.56
  5. Step 5: Solve for x
    x = 65,711.56/227.44
  6. Step 6: Final answer
    x = 288.92

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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.