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Finding the Third Proportional to 202,660 and 311,958

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Solution

The third proportional to 202,660 and 311,958 is: 480,202.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,660 : 311,958 = 311,958 : x
  2. Step 2: Convert to fraction form
    202,660/311,958 = 311,958/x
  3. Step 3: Cross multiply
    202,660x = 311,958 × 311,958
  4. Step 4: Simplify right side
    202,660x = 97,317,793,764
  5. Step 5: Solve for x
    x = 97,317,793,764/202,660
  6. Step 6: Final answer
    x = 480,202.28

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These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.