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Finding the Fourth Proportional to 275.46, 377.40 and 272.04

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Solution

The fourth proportional to 275.46, 377.40 and 272.04 is: 372.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    275.46 : 377.40 = 272.04 : x
  2. Step 2: Convert to fraction form
    275.46/377.40 = 272.04/x
  3. Step 3: Cross multiply
    275.46x = 377.40 × 272.04
  4. Step 4: Simplify right side
    275.46x = 102,667.90
  5. Step 5: Solve for x
    x = 102,667.90/275.46
  6. Step 6: Final answer
    x = 372.71

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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.