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Finding the Fourth Proportional to 481.58, 721.93 and 173.36

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Solution

The fourth proportional to 481.58, 721.93 and 173.36 is: 259.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    481.58 : 721.93 = 173.36 : x
  2. Step 2: Convert to fraction form
    481.58/721.93 = 173.36/x
  3. Step 3: Cross multiply
    481.58x = 721.93 × 173.36
  4. Step 4: Simplify right side
    481.58x = 125,149.96
  5. Step 5: Solve for x
    x = 125,149.96/481.58
  6. Step 6: Final answer
    x = 259.88

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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.