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Finding the Fourth Proportional to 799.97, 1,199.77 and 222.89

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Solution

The fourth proportional to 799.97, 1,199.77 and 222.89 is: 334.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    799.97 : 1,199.77 = 222.89 : x
  2. Step 2: Convert to fraction form
    799.97/1,199.77 = 222.89/x
  3. Step 3: Cross multiply
    799.97x = 1,199.77 × 222.89
  4. Step 4: Simplify right side
    799.97x = 267,410.18
  5. Step 5: Solve for x
    x = 267,410.18/799.97
  6. Step 6: Final answer
    x = 334.28

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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.