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Finding the Fourth Proportional to 238.19, 329.00 and 191.61

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Solution

The fourth proportional to 238.19, 329.00 and 191.61 is: 264.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    238.19 : 329.00 = 191.61 : x
  2. Step 2: Convert to fraction form
    238.19/329.00 = 191.61/x
  3. Step 3: Cross multiply
    238.19x = 329.00 × 191.61
  4. Step 4: Simplify right side
    238.19x = 63,038.73
  5. Step 5: Solve for x
    x = 63,038.73/238.19
  6. Step 6: Final answer
    x = 264.66

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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.