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Finding the Fourth Proportional to 268,974.20, 403,850.10 and 202,878.20

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Solution

The fourth proportional to 268,974.20, 403,850.10 and 202,878.20 is: 304,610.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,974.20 : 403,850.10 = 202,878.20 : x
  2. Step 2: Convert to fraction form
    268,974.20/403,850.10 = 202,878.20/x
  3. Step 3: Cross multiply
    268,974.20x = 403,850.10 × 202,878.20
  4. Step 4: Simplify right side
    268,974.20x = 81,932,381,357.82
  5. Step 5: Solve for x
    x = 81,932,381,357.82/268,974.20
  6. Step 6: Final answer
    x = 304,610.56

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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.