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Finding the Fourth Proportional to 799.10, 1,198.68 and 336.82

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Solution

The fourth proportional to 799.10, 1,198.68 and 336.82 is: 505.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    799.10 : 1,198.68 = 336.82 : x
  2. Step 2: Convert to fraction form
    799.10/1,198.68 = 336.82/x
  3. Step 3: Cross multiply
    799.10x = 1,198.68 × 336.82
  4. Step 4: Simplify right side
    799.10x = 403,739.40
  5. Step 5: Solve for x
    x = 403,739.40/799.10
  6. Step 6: Final answer
    x = 505.24

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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.