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Finding the Third Proportional to 225.84 and 376.78

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Solution

The third proportional to 225.84 and 376.78 is: 628.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    225.84 : 376.78 = 376.78 : x
  2. Step 2: Convert to fraction form
    225.84/376.78 = 376.78/x
  3. Step 3: Cross multiply
    225.84x = 376.78 × 376.78
  4. Step 4: Simplify right side
    225.84x = 141,964.11
  5. Step 5: Solve for x
    x = 141,964.11/225.84
  6. Step 6: Final answer
    x = 628.59

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Why These Related Problems?

These problems maintain the same ratio (1.67) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.