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Finding the Fourth Proportional to 481.55, 722.42 and 173.49

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Solution

The fourth proportional to 481.55, 722.42 and 173.49 is: 260.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    481.55 : 722.42 = 173.49 : x
  2. Step 2: Convert to fraction form
    481.55/722.42 = 173.49/x
  3. Step 3: Cross multiply
    481.55x = 722.42 × 173.49
  4. Step 4: Simplify right side
    481.55x = 125,333.78
  5. Step 5: Solve for x
    x = 125,333.78/481.55
  6. Step 6: Final answer
    x = 260.27

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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.