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Finding the Fourth Proportional to 281,906.56, 422,859.84 and 84,914.56

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Solution

The fourth proportional to 281,906.56, 422,859.84 and 84,914.56 is: 127,371.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,906.56 : 422,859.84 = 84,914.56 : x
  2. Step 2: Convert to fraction form
    281,906.56/422,859.84 = 84,914.56/x
  3. Step 3: Cross multiply
    281,906.56x = 422,859.84 × 84,914.56
  4. Step 4: Simplify right side
    281,906.56x = 35,906,957,255.27
  5. Step 5: Solve for x
    x = 35,906,957,255.27/281,906.56
  6. Step 6: Final answer
    x = 127,371.84

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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.