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Finding the Fourth Proportional to 151.12, 227.71 and 124.66

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Solution

The fourth proportional to 151.12, 227.71 and 124.66 is: 187.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    151.12 : 227.71 = 124.66 : x
  2. Step 2: Convert to fraction form
    151.12/227.71 = 124.66/x
  3. Step 3: Cross multiply
    151.12x = 227.71 × 124.66
  4. Step 4: Simplify right side
    151.12x = 28,385.19
  5. Step 5: Solve for x
    x = 28,385.19/151.12
  6. Step 6: Final answer
    x = 187.84

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.