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Finding the Fourth Proportional to 366.65, 550.12 and 161.11

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Solution

The fourth proportional to 366.65, 550.12 and 161.11 is: 241.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    366.65 : 550.12 = 161.11 : x
  2. Step 2: Convert to fraction form
    366.65/550.12 = 161.11/x
  3. Step 3: Cross multiply
    366.65x = 550.12 × 161.11
  4. Step 4: Simplify right side
    366.65x = 88,628.06
  5. Step 5: Solve for x
    x = 88,628.06/366.65
  6. Step 6: Final answer
    x = 241.73

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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.