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Finding the Fourth Proportional to 202.77, 301.94 and 199.86

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Solution

The fourth proportional to 202.77, 301.94 and 199.86 is: 297.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    202.77 : 301.94 = 199.86 : x
  2. Step 2: Convert to fraction form
    202.77/301.94 = 199.86/x
  3. Step 3: Cross multiply
    202.77x = 301.94 × 199.86
  4. Step 4: Simplify right side
    202.77x = 60,344.73
  5. Step 5: Solve for x
    x = 60,344.73/202.77
  6. Step 6: Final answer
    x = 297.60

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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.