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Finding the Fourth Proportional to 799.03, 1,198.53 and 279.02

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Solution

The fourth proportional to 799.03, 1,198.53 and 279.02 is: 418.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    799.03 : 1,198.53 = 279.02 : x
  2. Step 2: Convert to fraction form
    799.03/1,198.53 = 279.02/x
  3. Step 3: Cross multiply
    799.03x = 1,198.53 × 279.02
  4. Step 4: Simplify right side
    799.03x = 334,413.84
  5. Step 5: Solve for x
    x = 334,413.84/799.03
  6. Step 6: Final answer
    x = 418.52

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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.