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Finding the Fourth Proportional to 238.68, 330.06 and 226.92

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Solution

The fourth proportional to 238.68, 330.06 and 226.92 is: 313.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    238.68 : 330.06 = 226.92 : x
  2. Step 2: Convert to fraction form
    238.68/330.06 = 226.92/x
  3. Step 3: Cross multiply
    238.68x = 330.06 × 226.92
  4. Step 4: Simplify right side
    238.68x = 74,897.22
  5. Step 5: Solve for x
    x = 74,897.22/238.68
  6. Step 6: Final answer
    x = 313.80

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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.