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Finding the Fourth Proportional to 268,912.20, 403,757.10 and 202,816.20

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Solution

The fourth proportional to 268,912.20, 403,757.10 and 202,816.20 is: 304,517.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,912.20 : 403,757.10 = 202,816.20 : x
  2. Step 2: Convert to fraction form
    268,912.20/403,757.10 = 202,816.20/x
  3. Step 3: Cross multiply
    268,912.20x = 403,757.10 × 202,816.20
  4. Step 4: Simplify right side
    268,912.20x = 81,888,480,745.02
  5. Step 5: Solve for x
    x = 81,888,480,745.02/268,912.20
  6. Step 6: Final answer
    x = 304,517.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.