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Finding the Fourth Proportional to 203.33, 303.19 and 199.69

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Solution

The fourth proportional to 203.33, 303.19 and 199.69 is: 297.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    203.33 : 303.19 = 199.69 : x
  2. Step 2: Convert to fraction form
    203.33/303.19 = 199.69/x
  3. Step 3: Cross multiply
    203.33x = 303.19 × 199.69
  4. Step 4: Simplify right side
    203.33x = 60,542.75
  5. Step 5: Solve for x
    x = 60,542.75/203.33
  6. Step 6: Final answer
    x = 297.75

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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.