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Finding the Fourth Proportional to 238.65, 329.50 and 150.17

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Solution

The fourth proportional to 238.65, 329.50 and 150.17 is: 207.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    238.65 : 329.50 = 150.17 : x
  2. Step 2: Convert to fraction form
    238.65/329.50 = 150.17/x
  3. Step 3: Cross multiply
    238.65x = 329.50 × 150.17
  4. Step 4: Simplify right side
    238.65x = 49,481.02
  5. Step 5: Solve for x
    x = 49,481.02/238.65
  6. Step 6: Final answer
    x = 207.34

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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.