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Finding the Fourth Proportional to 202.53, 277.62 and 199.70

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Solution

The fourth proportional to 202.53, 277.62 and 199.70 is: 273.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    202.53 : 277.62 = 199.70 : x
  2. Step 2: Convert to fraction form
    202.53/277.62 = 199.70/x
  3. Step 3: Cross multiply
    202.53x = 277.62 × 199.70
  4. Step 4: Simplify right side
    202.53x = 55,439.33
  5. Step 5: Solve for x
    x = 55,439.33/202.53
  6. Step 6: Final answer
    x = 273.73

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.