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Finding the Fourth Proportional to 204.11, 279.99 and 201.38

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Solution

The fourth proportional to 204.11, 279.99 and 201.38 is: 276.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    204.11 : 279.99 = 201.38 : x
  2. Step 2: Convert to fraction form
    204.11/279.99 = 201.38/x
  3. Step 3: Cross multiply
    204.11x = 279.99 × 201.38
  4. Step 4: Simplify right side
    204.11x = 56,382.99
  5. Step 5: Solve for x
    x = 56,382.99/204.11
  6. Step 6: Final answer
    x = 276.25

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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.