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Finding the Fourth Proportional to 276.08, 380.74 and 226.96

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Solution

The fourth proportional to 276.08, 380.74 and 226.96 is: 313.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    276.08 : 380.74 = 226.96 : x
  2. Step 2: Convert to fraction form
    276.08/380.74 = 226.96/x
  3. Step 3: Cross multiply
    276.08x = 380.74 × 226.96
  4. Step 4: Simplify right side
    276.08x = 86,412.75
  5. Step 5: Solve for x
    x = 86,412.75/276.08
  6. Step 6: Final answer
    x = 313.00

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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.