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Finding the Fourth Proportional to 299.03, 448.31 and 136.63

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Solution

The fourth proportional to 299.03, 448.31 and 136.63 is: 204.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    299.03 : 448.31 = 136.63 : x
  2. Step 2: Convert to fraction form
    299.03/448.31 = 136.63/x
  3. Step 3: Cross multiply
    299.03x = 448.31 × 136.63
  4. Step 4: Simplify right side
    299.03x = 61,251.82
  5. Step 5: Solve for x
    x = 61,251.82/299.03
  6. Step 6: Final answer
    x = 204.83

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.