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Finding the Fourth Proportional to 276.06, 380.87 and 169.61

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Solution

The fourth proportional to 276.06, 380.87 and 169.61 is: 234.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    276.06 : 380.87 = 169.61 : x
  2. Step 2: Convert to fraction form
    276.06/380.87 = 169.61/x
  3. Step 3: Cross multiply
    276.06x = 380.87 × 169.61
  4. Step 4: Simplify right side
    276.06x = 64,598.14
  5. Step 5: Solve for x
    x = 64,598.14/276.06
  6. Step 6: Final answer
    x = 234.00

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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.