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Finding the Fourth Proportional to 222.29, 332.31 and 199.10

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Solution

The fourth proportional to 222.29, 332.31 and 199.10 is: 297.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    222.29 : 332.31 = 199.10 : x
  2. Step 2: Convert to fraction form
    222.29/332.31 = 199.10/x
  3. Step 3: Cross multiply
    222.29x = 332.31 × 199.10
  4. Step 4: Simplify right side
    222.29x = 66,163.75
  5. Step 5: Solve for x
    x = 66,163.75/222.29
  6. Step 6: Final answer
    x = 297.65

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.