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Finding the Fourth Proportional to 241.21, 356.89 and 240.49

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Solution

The fourth proportional to 241.21, 356.89 and 240.49 is: 355.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    241.21 : 356.89 = 240.49 : x
  2. Step 2: Convert to fraction form
    241.21/356.89 = 240.49/x
  3. Step 3: Cross multiply
    241.21x = 356.89 × 240.49
  4. Step 4: Simplify right side
    241.21x = 85,828.48
  5. Step 5: Solve for x
    x = 85,828.48/241.21
  6. Step 6: Final answer
    x = 355.82

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Why These Related Problems?

These problems maintain the same ratio (1.48) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.