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Finding the Fourth Proportional to 173.22, 260.79 and 134.91

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Solution

The fourth proportional to 173.22, 260.79 and 134.91 is: 203.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    173.22 : 260.79 = 134.91 : x
  2. Step 2: Convert to fraction form
    173.22/260.79 = 134.91/x
  3. Step 3: Cross multiply
    173.22x = 260.79 × 134.91
  4. Step 4: Simplify right side
    173.22x = 35,183.18
  5. Step 5: Solve for x
    x = 35,183.18/173.22
  6. Step 6: Final answer
    x = 203.11

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.