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Finding the Fourth Proportional to 183.56, 274.80 and 132.20

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Solution

The fourth proportional to 183.56, 274.80 and 132.20 is: 197.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    183.56 : 274.80 = 132.20 : x
  2. Step 2: Convert to fraction form
    183.56/274.80 = 132.20/x
  3. Step 3: Cross multiply
    183.56x = 274.80 × 132.20
  4. Step 4: Simplify right side
    183.56x = 36,328.56
  5. Step 5: Solve for x
    x = 36,328.56/183.56
  6. Step 6: Final answer
    x = 197.91

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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.