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Finding the Fourth Proportional to 366.92, 506.20 and 226.79

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Solution

The fourth proportional to 366.92, 506.20 and 226.79 is: 312.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    366.92 : 506.20 = 226.79 : x
  2. Step 2: Convert to fraction form
    366.92/506.20 = 226.79/x
  3. Step 3: Cross multiply
    366.92x = 506.20 × 226.79
  4. Step 4: Simplify right side
    366.92x = 114,801.10
  5. Step 5: Solve for x
    x = 114,801.10/366.92
  6. Step 6: Final answer
    x = 312.88

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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.