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Finding the Fourth Proportional to 300.75, 414.86 and 226.94

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Solution

The fourth proportional to 300.75, 414.86 and 226.94 is: 313.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    300.75 : 414.86 = 226.94 : x
  2. Step 2: Convert to fraction form
    300.75/414.86 = 226.94/x
  3. Step 3: Cross multiply
    300.75x = 414.86 × 226.94
  4. Step 4: Simplify right side
    300.75x = 94,145.12
  5. Step 5: Solve for x
    x = 94,145.12/300.75
  6. Step 6: Final answer
    x = 313.04

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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.