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Finding the Fourth Proportional to 272.12, 408.18 and 241.75

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Solution

The fourth proportional to 272.12, 408.18 and 241.75 is: 362.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    272.12 : 408.18 = 241.75 : x
  2. Step 2: Convert to fraction form
    272.12/408.18 = 241.75/x
  3. Step 3: Cross multiply
    272.12x = 408.18 × 241.75
  4. Step 4: Simplify right side
    272.12x = 98,675.47
  5. Step 5: Solve for x
    x = 98,675.47/272.12
  6. Step 6: Final answer
    x = 362.62

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.