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Finding the Fourth Proportional to 135.11, 201.79 and 134.17

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Solution

The fourth proportional to 135.11, 201.79 and 134.17 is: 200.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    135.11 : 201.79 = 134.17 : x
  2. Step 2: Convert to fraction form
    135.11/201.79 = 134.17/x
  3. Step 3: Cross multiply
    135.11x = 201.79 × 134.17
  4. Step 4: Simplify right side
    135.11x = 27,074.16
  5. Step 5: Solve for x
    x = 27,074.16/135.11
  6. Step 6: Final answer
    x = 200.39

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.