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Finding the Fourth Proportional to 198,059, 273,322.86 and 108,635

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Solution

The fourth proportional to 198,059, 273,322.86 and 108,635 is: 149,917.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,059 : 273,322.86 = 108,635 : x
  2. Step 2: Convert to fraction form
    198,059/273,322.86 = 108,635/x
  3. Step 3: Cross multiply
    198,059x = 273,322.86 × 108,635
  4. Step 4: Simplify right side
    198,059x = 29,692,428,896.10
  5. Step 5: Solve for x
    x = 29,692,428,896.10/198,059
  6. Step 6: Final answer
    x = 149,917.09

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.