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Finding the Fourth Proportional to 173.73, 260.50 and 76.11

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Solution

The fourth proportional to 173.73, 260.50 and 76.11 is: 114.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    173.73 : 260.50 = 76.11 : x
  2. Step 2: Convert to fraction form
    173.73/260.50 = 76.11/x
  3. Step 3: Cross multiply
    173.73x = 260.50 × 76.11
  4. Step 4: Simplify right side
    173.73x = 19,827.27
  5. Step 5: Solve for x
    x = 19,827.27/173.73
  6. Step 6: Final answer
    x = 114.13

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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.