Home / 281,974.80-422,981.40-82,294.80

Finding the Fourth Proportional to 281,974.80, 422,981.40 and 82,294.80

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Solution

The fourth proportional to 281,974.80, 422,981.40 and 82,294.80 is: 123,447.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,974.80 : 422,981.40 = 82,294.80 : x
  2. Step 2: Convert to fraction form
    281,974.80/422,981.40 = 82,294.80/x
  3. Step 3: Cross multiply
    281,974.80x = 422,981.40 × 82,294.80
  4. Step 4: Simplify right side
    281,974.80x = 34,809,169,716.72
  5. Step 5: Solve for x
    x = 34,809,169,716.72/281,974.80
  6. Step 6: Final answer
    x = 123,447.80

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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.