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Finding the Fourth Proportional to 151.32, 227.99 and 136.89

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Solution

The fourth proportional to 151.32, 227.99 and 136.89 is: 206.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    151.32 : 227.99 = 136.89 : x
  2. Step 2: Convert to fraction form
    151.32/227.99 = 136.89/x
  3. Step 3: Cross multiply
    151.32x = 227.99 × 136.89
  4. Step 4: Simplify right side
    151.32x = 31,208.87
  5. Step 5: Solve for x
    x = 31,208.87/151.32
  6. Step 6: Final answer
    x = 206.25

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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.