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Finding the Fourth Proportional to 300.99, 449.66 and 252.39

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Solution

The fourth proportional to 300.99, 449.66 and 252.39 is: 377.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    300.99 : 449.66 = 252.39 : x
  2. Step 2: Convert to fraction form
    300.99/449.66 = 252.39/x
  3. Step 3: Cross multiply
    300.99x = 449.66 × 252.39
  4. Step 4: Simplify right side
    300.99x = 113,488.43
  5. Step 5: Solve for x
    x = 113,488.43/300.99
  6. Step 6: Final answer
    x = 377.05

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.