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Finding the Fourth Proportional to 201.18, 276.66 and 179.31

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Solution

The fourth proportional to 201.18, 276.66 and 179.31 is: 246.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    201.18 : 276.66 = 179.31 : x
  2. Step 2: Convert to fraction form
    201.18/276.66 = 179.31/x
  3. Step 3: Cross multiply
    201.18x = 276.66 × 179.31
  4. Step 4: Simplify right side
    201.18x = 49,607.90
  5. Step 5: Solve for x
    x = 49,607.90/201.18
  6. Step 6: Final answer
    x = 246.58

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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.