Home / 281,964.45-422,939.64-82,286.56

Finding the Fourth Proportional to 281,964.45, 422,939.64 and 82,286.56

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Solution

The fourth proportional to 281,964.45, 422,939.64 and 82,286.56 is: 123,427.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,964.45 : 422,939.64 = 82,286.56 : x
  2. Step 2: Convert to fraction form
    281,964.45/422,939.64 = 82,286.56/x
  3. Step 3: Cross multiply
    281,964.45x = 422,939.64 × 82,286.56
  4. Step 4: Simplify right side
    281,964.45x = 34,802,248,591.91
  5. Step 5: Solve for x
    x = 34,802,248,591.91/281,964.45
  6. Step 6: Final answer
    x = 123,427.79

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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.