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Finding the Fourth Proportional to 300.24, 414.41 and 212.94

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Solution

The fourth proportional to 300.24, 414.41 and 212.94 is: 293.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    300.24 : 414.41 = 212.94 : x
  2. Step 2: Convert to fraction form
    300.24/414.41 = 212.94/x
  3. Step 3: Cross multiply
    300.24x = 414.41 × 212.94
  4. Step 4: Simplify right side
    300.24x = 88,243.40
  5. Step 5: Solve for x
    x = 88,243.40/300.24
  6. Step 6: Final answer
    x = 293.91

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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.