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Finding the Fourth Proportional to 183.06, 252.73 and 120.99

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Solution

The fourth proportional to 183.06, 252.73 and 120.99 is: 167.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    183.06 : 252.73 = 120.99 : x
  2. Step 2: Convert to fraction form
    183.06/252.73 = 120.99/x
  3. Step 3: Cross multiply
    183.06x = 252.73 × 120.99
  4. Step 4: Simplify right side
    183.06x = 30,579.20
  5. Step 5: Solve for x
    x = 30,579.20/183.06
  6. Step 6: Final answer
    x = 167.04

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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.