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Finding the Fourth Proportional to 366.65, 550.11 and 161.10

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Solution

The fourth proportional to 366.65, 550.11 and 161.10 is: 241.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    366.65 : 550.11 = 161.10 : x
  2. Step 2: Convert to fraction form
    366.65/550.11 = 161.10/x
  3. Step 3: Cross multiply
    366.65x = 550.11 × 161.10
  4. Step 4: Simplify right side
    366.65x = 88,622.72
  5. Step 5: Solve for x
    x = 88,622.72/366.65
  6. Step 6: Final answer
    x = 241.71

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.