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Finding the Fourth Proportional to 222,515.97, 333,805.77 and 68,655

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Solution

The fourth proportional to 222,515.97, 333,805.77 and 68,655 is: 102,992.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,515.97 : 333,805.77 = 68,655 : x
  2. Step 2: Convert to fraction form
    222,515.97/333,805.77 = 68,655/x
  3. Step 3: Cross multiply
    222,515.97x = 333,805.77 × 68,655
  4. Step 4: Simplify right side
    222,515.97x = 22,917,434,796.08
  5. Step 5: Solve for x
    x = 22,917,434,796.08/222,515.97
  6. Step 6: Final answer
    x = 102,992.31

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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.