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Finding the Fourth Proportional to 243.66, 338.58 and 241.16

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Solution

The fourth proportional to 243.66, 338.58 and 241.16 is: 335.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    243.66 : 338.58 = 241.16 : x
  2. Step 2: Convert to fraction form
    243.66/338.58 = 241.16/x
  3. Step 3: Cross multiply
    243.66x = 338.58 × 241.16
  4. Step 4: Simplify right side
    243.66x = 81,651.95
  5. Step 5: Solve for x
    x = 81,651.95/243.66
  6. Step 6: Final answer
    x = 335.11

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.