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Finding the Fourth Proportional to 226.79, 314.39 and 219.23

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Solution

The fourth proportional to 226.79, 314.39 and 219.23 is: 303.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    226.79 : 314.39 = 219.23 : x
  2. Step 2: Convert to fraction form
    226.79/314.39 = 219.23/x
  3. Step 3: Cross multiply
    226.79x = 314.39 × 219.23
  4. Step 4: Simplify right side
    226.79x = 68,922.15
  5. Step 5: Solve for x
    x = 68,922.15/226.79
  6. Step 6: Final answer
    x = 303.91

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.