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Finding the Fourth Proportional to 559.38, 838.82 and 299.33

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Solution

The fourth proportional to 559.38, 838.82 and 299.33 is: 448.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    559.38 : 838.82 = 299.33 : x
  2. Step 2: Convert to fraction form
    559.38/838.82 = 299.33/x
  3. Step 3: Cross multiply
    559.38x = 838.82 × 299.33
  4. Step 4: Simplify right side
    559.38x = 251,078.30
  5. Step 5: Solve for x
    x = 251,078.30/559.38
  6. Step 6: Final answer
    x = 448.85

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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.