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Finding the Fourth Proportional to 276.12, 377.55 and 266.04

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Solution

The fourth proportional to 276.12, 377.55 and 266.04 is: 363.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    276.12 : 377.55 = 266.04 : x
  2. Step 2: Convert to fraction form
    276.12/377.55 = 266.04/x
  3. Step 3: Cross multiply
    276.12x = 377.55 × 266.04
  4. Step 4: Simplify right side
    276.12x = 100,443.40
  5. Step 5: Solve for x
    x = 100,443.40/276.12
  6. Step 6: Final answer
    x = 363.77

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.