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Finding the Fourth Proportional to 227.48, 341.05 and 105.57

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Solution

The fourth proportional to 227.48, 341.05 and 105.57 is: 158.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    227.48 : 341.05 = 105.57 : x
  2. Step 2: Convert to fraction form
    227.48/341.05 = 105.57/x
  3. Step 3: Cross multiply
    227.48x = 341.05 × 105.57
  4. Step 4: Simplify right side
    227.48x = 36,004.65
  5. Step 5: Solve for x
    x = 36,004.65/227.48
  6. Step 6: Final answer
    x = 158.28

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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.