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Finding the Fourth Proportional to 481.06, 721.55 and 134.37

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Solution

The fourth proportional to 481.06, 721.55 and 134.37 is: 201.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    481.06 : 721.55 = 134.37 : x
  2. Step 2: Convert to fraction form
    481.06/721.55 = 134.37/x
  3. Step 3: Cross multiply
    481.06x = 721.55 × 134.37
  4. Step 4: Simplify right side
    481.06x = 96,952.30
  5. Step 5: Solve for x
    x = 96,952.30/481.06
  6. Step 6: Final answer
    x = 201.54

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.