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Finding the Fourth Proportional to 135.27, 201.38 and 134.87

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Solution

The fourth proportional to 135.27, 201.38 and 134.87 is: 200.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    135.27 : 201.38 = 134.87 : x
  2. Step 2: Convert to fraction form
    135.27/201.38 = 134.87/x
  3. Step 3: Cross multiply
    135.27x = 201.38 × 134.87
  4. Step 4: Simplify right side
    135.27x = 27,158.44
  5. Step 5: Solve for x
    x = 27,158.44/135.27
  6. Step 6: Final answer
    x = 200.77

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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.