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Finding the Fourth Proportional to 182.95, 274.19 and 80.21

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Solution

The fourth proportional to 182.95, 274.19 and 80.21 is: 120.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    182.95 : 274.19 = 80.21 : x
  2. Step 2: Convert to fraction form
    182.95/274.19 = 80.21/x
  3. Step 3: Cross multiply
    182.95x = 274.19 × 80.21
  4. Step 4: Simplify right side
    182.95x = 21,991.41
  5. Step 5: Solve for x
    x = 21,991.41/182.95
  6. Step 6: Final answer
    x = 120.20

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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.