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Finding the Fourth Proportional to 238.89, 327.66 and 219.45

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Solution

The fourth proportional to 238.89, 327.66 and 219.45 is: 301.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    238.89 : 327.66 = 219.45 : x
  2. Step 2: Convert to fraction form
    238.89/327.66 = 219.45/x
  3. Step 3: Cross multiply
    238.89x = 327.66 × 219.45
  4. Step 4: Simplify right side
    238.89x = 71,904.99
  5. Step 5: Solve for x
    x = 71,904.99/238.89
  6. Step 6: Final answer
    x = 301.00

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.