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Finding the Fourth Proportional to 281,589.87, 422,333.78 and 113,103.39

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Solution

The fourth proportional to 281,589.87, 422,333.78 and 113,103.39 is: 169,634.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,589.87 : 422,333.78 = 113,103.39 : x
  2. Step 2: Convert to fraction form
    281,589.87/422,333.78 = 113,103.39/x
  3. Step 3: Cross multiply
    281,589.87x = 422,333.78 × 113,103.39
  4. Step 4: Simplify right side
    281,589.87x = 47,767,382,229.51
  5. Step 5: Solve for x
    x = 47,767,382,229.51/281,589.87
  6. Step 6: Final answer
    x = 169,634.59

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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.