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Finding the Fourth Proportional to 201.32, 276.49 and 168.52

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Solution

The fourth proportional to 201.32, 276.49 and 168.52 is: 231.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    201.32 : 276.49 = 168.52 : x
  2. Step 2: Convert to fraction form
    201.32/276.49 = 168.52/x
  3. Step 3: Cross multiply
    201.32x = 276.49 × 168.52
  4. Step 4: Simplify right side
    201.32x = 46,594.09
  5. Step 5: Solve for x
    x = 46,594.09/201.32
  6. Step 6: Final answer
    x = 231.44

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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.