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Finding the Fourth Proportional to 358.72, 495.26 and 227.95

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Solution

The fourth proportional to 358.72, 495.26 and 227.95 is: 314.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    358.72 : 495.26 = 227.95 : x
  2. Step 2: Convert to fraction form
    358.72/495.26 = 227.95/x
  3. Step 3: Cross multiply
    358.72x = 495.26 × 227.95
  4. Step 4: Simplify right side
    358.72x = 112,894.52
  5. Step 5: Solve for x
    x = 112,894.52/358.72
  6. Step 6: Final answer
    x = 314.71

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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.