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Finding the Fourth Proportional to 198,632, 274,176 and 127,204.48

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Solution

The fourth proportional to 198,632, 274,176 and 127,204.48 is: 175,583.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,632 : 274,176 = 127,204.48 : x
  2. Step 2: Convert to fraction form
    198,632/274,176 = 127,204.48/x
  3. Step 3: Cross multiply
    198,632x = 274,176 × 127,204.48
  4. Step 4: Simplify right side
    198,632x = 34,876,415,508.48
  5. Step 5: Solve for x
    x = 34,876,415,508.48/198,632
  6. Step 6: Final answer
    x = 175,583.07

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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.