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Finding the Fourth Proportional to 272.80, 376.30 and 174.52

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Solution

The fourth proportional to 272.80, 376.30 and 174.52 is: 240.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    272.80 : 376.30 = 174.52 : x
  2. Step 2: Convert to fraction form
    272.80/376.30 = 174.52/x
  3. Step 3: Cross multiply
    272.80x = 376.30 × 174.52
  4. Step 4: Simplify right side
    272.80x = 65,671.88
  5. Step 5: Solve for x
    x = 65,671.88/272.80
  6. Step 6: Final answer
    x = 240.73

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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.