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Finding the Fourth Proportional to 183.60, 252.87 and 144.72

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Solution

The fourth proportional to 183.60, 252.87 and 144.72 is: 199.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    183.60 : 252.87 = 144.72 : x
  2. Step 2: Convert to fraction form
    183.60/252.87 = 144.72/x
  3. Step 3: Cross multiply
    183.60x = 252.87 × 144.72
  4. Step 4: Simplify right side
    183.60x = 36,595.35
  5. Step 5: Solve for x
    x = 36,595.35/183.60
  6. Step 6: Final answer
    x = 199.32

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.