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Finding the Fourth Proportional to 240.81, 360.27 and 168.18

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Solution

The fourth proportional to 240.81, 360.27 and 168.18 is: 251.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    240.81 : 360.27 = 168.18 : x
  2. Step 2: Convert to fraction form
    240.81/360.27 = 168.18/x
  3. Step 3: Cross multiply
    240.81x = 360.27 × 168.18
  4. Step 4: Simplify right side
    240.81x = 60,590.21
  5. Step 5: Solve for x
    x = 60,590.21/240.81
  6. Step 6: Final answer
    x = 251.61

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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.