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Finding the Fourth Proportional to 151.72, 227.80 and 94.18

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Solution

The fourth proportional to 151.72, 227.80 and 94.18 is: 141.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    151.72 : 227.80 = 94.18 : x
  2. Step 2: Convert to fraction form
    151.72/227.80 = 94.18/x
  3. Step 3: Cross multiply
    151.72x = 227.80 × 94.18
  4. Step 4: Simplify right side
    151.72x = 21,454.20
  5. Step 5: Solve for x
    x = 21,454.20/151.72
  6. Step 6: Final answer
    x = 141.41

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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.