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Finding the Fourth Proportional to 241.76, 331.60 and 238.88

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Solution

The fourth proportional to 241.76, 331.60 and 238.88 is: 327.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    241.76 : 331.60 = 238.88 : x
  2. Step 2: Convert to fraction form
    241.76/331.60 = 238.88/x
  3. Step 3: Cross multiply
    241.76x = 331.60 × 238.88
  4. Step 4: Simplify right side
    241.76x = 79,212.61
  5. Step 5: Solve for x
    x = 79,212.61/241.76
  6. Step 6: Final answer
    x = 327.65

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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.