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Finding the Fourth Proportional to 219,662.78, 329,117.94 and 119,892.92

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Solution

The fourth proportional to 219,662.78, 329,117.94 and 119,892.92 is: 179,634.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,662.78 : 329,117.94 = 119,892.92 : x
  2. Step 2: Convert to fraction form
    219,662.78/329,117.94 = 119,892.92/x
  3. Step 3: Cross multiply
    219,662.78x = 329,117.94 × 119,892.92
  4. Step 4: Simplify right side
    219,662.78x = 39,458,910,850.98
  5. Step 5: Solve for x
    x = 39,458,910,850.98/219,662.78
  6. Step 6: Final answer
    x = 179,634.03

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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.