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Finding the Fourth Proportional to 198,673, 274,227.06 and 118,157.56

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Solution

The fourth proportional to 198,673, 274,227.06 and 118,157.56 is: 163,092.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,673 : 274,227.06 = 118,157.56 : x
  2. Step 2: Convert to fraction form
    198,673/274,227.06 = 118,157.56/x
  3. Step 3: Cross multiply
    198,673x = 274,227.06 × 118,157.56
  4. Step 4: Simplify right side
    198,673x = 32,402,000,295.57
  5. Step 5: Solve for x
    x = 32,402,000,295.57/198,673
  6. Step 6: Final answer
    x = 163,092.12

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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.