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Finding the Fourth Proportional to 281,893.82, 422,818.67 and 79,481.75

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Solution

The fourth proportional to 281,893.82, 422,818.67 and 79,481.75 is: 119,216.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,893.82 : 422,818.67 = 79,481.75 : x
  2. Step 2: Convert to fraction form
    281,893.82/422,818.67 = 79,481.75/x
  3. Step 3: Cross multiply
    281,893.82x = 422,818.67 × 79,481.75
  4. Step 4: Simplify right side
    281,893.82x = 33,606,369,080.02
  5. Step 5: Solve for x
    x = 33,606,369,080.02/281,893.82
  6. Step 6: Final answer
    x = 119,216.41

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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.