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Finding the Fourth Proportional to 201.31, 276.54 and 173.29

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Solution

The fourth proportional to 201.31, 276.54 and 173.29 is: 238.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    201.31 : 276.54 = 173.29 : x
  2. Step 2: Convert to fraction form
    201.31/276.54 = 173.29/x
  3. Step 3: Cross multiply
    201.31x = 276.54 × 173.29
  4. Step 4: Simplify right side
    201.31x = 47,921.28
  5. Step 5: Solve for x
    x = 47,921.28/201.31
  6. Step 6: Final answer
    x = 238.05

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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.