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Finding the Fourth Proportional to 272.87, 376.43 and 174.53

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Solution

The fourth proportional to 272.87, 376.43 and 174.53 is: 240.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    272.87 : 376.43 = 174.53 : x
  2. Step 2: Convert to fraction form
    272.87/376.43 = 174.53/x
  3. Step 3: Cross multiply
    272.87x = 376.43 × 174.53
  4. Step 4: Simplify right side
    272.87x = 65,695.57
  5. Step 5: Solve for x
    x = 65,695.57/272.87
  6. Step 6: Final answer
    x = 240.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.