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Finding the Fourth Proportional to 238.73, 329.54 and 151.47

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Solution

The fourth proportional to 238.73, 329.54 and 151.47 is: 209.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    238.73 : 329.54 = 151.47 : x
  2. Step 2: Convert to fraction form
    238.73/329.54 = 151.47/x
  3. Step 3: Cross multiply
    238.73x = 329.54 × 151.47
  4. Step 4: Simplify right side
    238.73x = 49,914.67
  5. Step 5: Solve for x
    x = 49,914.67/238.73
  6. Step 6: Final answer
    x = 209.09

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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.