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Finding the Fourth Proportional to 183.60, 273.78 and 168.21

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Solution

The fourth proportional to 183.60, 273.78 and 168.21 is: 250.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    183.60 : 273.78 = 168.21 : x
  2. Step 2: Convert to fraction form
    183.60/273.78 = 168.21/x
  3. Step 3: Cross multiply
    183.60x = 273.78 × 168.21
  4. Step 4: Simplify right side
    183.60x = 46,052.53
  5. Step 5: Solve for x
    x = 46,052.53/183.60
  6. Step 6: Final answer
    x = 250.83

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.