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Finding the Fourth Proportional to 227.73, 314.09 and 202.86

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Solution

The fourth proportional to 227.73, 314.09 and 202.86 is: 279.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    227.73 : 314.09 = 202.86 : x
  2. Step 2: Convert to fraction form
    227.73/314.09 = 202.86/x
  3. Step 3: Cross multiply
    227.73x = 314.09 × 202.86
  4. Step 4: Simplify right side
    227.73x = 63,716.04
  5. Step 5: Solve for x
    x = 63,716.04/227.73
  6. Step 6: Final answer
    x = 279.78

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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.