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Finding the Fourth Proportional to 272.53, 376.17 and 202.66

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Solution

The fourth proportional to 272.53, 376.17 and 202.66 is: 279.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    272.53 : 376.17 = 202.66 : x
  2. Step 2: Convert to fraction form
    272.53/376.17 = 202.66/x
  3. Step 3: Cross multiply
    272.53x = 376.17 × 202.66
  4. Step 4: Simplify right side
    272.53x = 76,234.61
  5. Step 5: Solve for x
    x = 76,234.61/272.53
  6. Step 6: Final answer
    x = 279.73

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