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Finding the Fourth Proportional to 299.88, 448.07 and 230.09

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Solution

The fourth proportional to 299.88, 448.07 and 230.09 is: 343.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    299.88 : 448.07 = 230.09 : x
  2. Step 2: Convert to fraction form
    299.88/448.07 = 230.09/x
  3. Step 3: Cross multiply
    299.88x = 448.07 × 230.09
  4. Step 4: Simplify right side
    299.88x = 103,093.04
  5. Step 5: Solve for x
    x = 103,093.04/299.88
  6. Step 6: Final answer
    x = 343.78

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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.