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Finding the Fourth Proportional to 272.65, 408.97 and 116.48

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Solution

The fourth proportional to 272.65, 408.97 and 116.48 is: 174.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    272.65 : 408.97 = 116.48 : x
  2. Step 2: Convert to fraction form
    272.65/408.97 = 116.48/x
  3. Step 3: Cross multiply
    272.65x = 408.97 × 116.48
  4. Step 4: Simplify right side
    272.65x = 47,636.24
  5. Step 5: Solve for x
    x = 47,636.24/272.65
  6. Step 6: Final answer
    x = 174.72

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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.