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Finding the Fourth Proportional to 173.30, 258.29 and 163.57

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Solution

The fourth proportional to 173.30, 258.29 and 163.57 is: 243.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    173.30 : 258.29 = 163.57 : x
  2. Step 2: Convert to fraction form
    173.30/258.29 = 163.57/x
  3. Step 3: Cross multiply
    173.30x = 258.29 × 163.57
  4. Step 4: Simplify right side
    173.30x = 42,247.20
  5. Step 5: Solve for x
    x = 42,247.20/173.30
  6. Step 6: Final answer
    x = 243.79

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.