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Finding the Fourth Proportional to 241.18, 330.28 and 239.76

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Solution

The fourth proportional to 241.18, 330.28 and 239.76 is: 328.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    241.18 : 330.28 = 239.76 : x
  2. Step 2: Convert to fraction form
    241.18/330.28 = 239.76/x
  3. Step 3: Cross multiply
    241.18x = 330.28 × 239.76
  4. Step 4: Simplify right side
    241.18x = 79,187.33
  5. Step 5: Solve for x
    x = 79,187.33/241.18
  6. Step 6: Final answer
    x = 328.34

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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.