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Finding the Fourth Proportional to 173.41, 260.21 and 115.69

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Solution

The fourth proportional to 173.41, 260.21 and 115.69 is: 173.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    173.41 : 260.21 = 115.69 : x
  2. Step 2: Convert to fraction form
    173.41/260.21 = 115.69/x
  3. Step 3: Cross multiply
    173.41x = 260.21 × 115.69
  4. Step 4: Simplify right side
    173.41x = 30,103.69
  5. Step 5: Solve for x
    x = 30,103.69/173.41
  6. Step 6: Final answer
    x = 173.60

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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.