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Finding the Fourth Proportional to 227.92, 315.04 and 170.24

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Solution

The fourth proportional to 227.92, 315.04 and 170.24 is: 235.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    227.92 : 315.04 = 170.24 : x
  2. Step 2: Convert to fraction form
    227.92/315.04 = 170.24/x
  3. Step 3: Cross multiply
    227.92x = 315.04 × 170.24
  4. Step 4: Simplify right side
    227.92x = 53,632.41
  5. Step 5: Solve for x
    x = 53,632.41/227.92
  6. Step 6: Final answer
    x = 235.31

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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.