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Finding the Fourth Proportional to 198,633.31, 274,119.37 and 107,995.37

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Solution

The fourth proportional to 198,633.31, 274,119.37 and 107,995.37 is: 149,036.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,633.31 : 274,119.37 = 107,995.37 : x
  2. Step 2: Convert to fraction form
    198,633.31/274,119.37 = 107,995.37/x
  3. Step 3: Cross multiply
    198,633.31x = 274,119.37 × 107,995.37
  4. Step 4: Simplify right side
    198,633.31x = 29,603,622,787.32
  5. Step 5: Solve for x
    x = 29,603,622,787.32/198,633.31
  6. Step 6: Final answer
    x = 149,036.55

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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.