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Finding the Fourth Proportional to 276.87, 382.03 and 158.82

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Solution

The fourth proportional to 276.87, 382.03 and 158.82 is: 219.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    276.87 : 382.03 = 158.82 : x
  2. Step 2: Convert to fraction form
    276.87/382.03 = 158.82/x
  3. Step 3: Cross multiply
    276.87x = 382.03 × 158.82
  4. Step 4: Simplify right side
    276.87x = 60,674.00
  5. Step 5: Solve for x
    x = 60,674.00/276.87
  6. Step 6: Final answer
    x = 219.14

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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.