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Finding the Fourth Proportional to 481.22, 722.03 and 156.59

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Solution

The fourth proportional to 481.22, 722.03 and 156.59 is: 234.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    481.22 : 722.03 = 156.59 : x
  2. Step 2: Convert to fraction form
    481.22/722.03 = 156.59/x
  3. Step 3: Cross multiply
    481.22x = 722.03 × 156.59
  4. Step 4: Simplify right side
    481.22x = 113,063.70
  5. Step 5: Solve for x
    x = 113,063.70/481.22
  6. Step 6: Final answer
    x = 234.95

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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.