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Finding the Fourth Proportional to 281,590.87, 422,335.28 and 113,104.39

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Solution

The fourth proportional to 281,590.87, 422,335.28 and 113,104.39 is: 169,636.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,590.87 : 422,335.28 = 113,104.39 : x
  2. Step 2: Convert to fraction form
    281,590.87/422,335.28 = 113,104.39/x
  3. Step 3: Cross multiply
    281,590.87x = 422,335.28 × 113,104.39
  4. Step 4: Simplify right side
    281,590.87x = 47,767,974,219.88
  5. Step 5: Solve for x
    x = 47,767,974,219.88/281,590.87
  6. Step 6: Final answer
    x = 169,636.09

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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.