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Finding the Fourth Proportional to 241.30, 330.82 and 239.50

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Solution

The fourth proportional to 241.30, 330.82 and 239.50 is: 328.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    241.30 : 330.82 = 239.50 : x
  2. Step 2: Convert to fraction form
    241.30/330.82 = 239.50/x
  3. Step 3: Cross multiply
    241.30x = 330.82 × 239.50
  4. Step 4: Simplify right side
    241.30x = 79,231.39
  5. Step 5: Solve for x
    x = 79,231.39/241.30
  6. Step 6: Final answer
    x = 328.35

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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.