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Finding the Fourth Proportional to 198,796.99, 274,340.50 and 108,152.93

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Solution

The fourth proportional to 198,796.99, 274,340.50 and 108,152.93 is: 149,251.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,796.99 : 274,340.50 = 108,152.93 : x
  2. Step 2: Convert to fraction form
    198,796.99/274,340.50 = 108,152.93/x
  3. Step 3: Cross multiply
    198,796.99x = 274,340.50 × 108,152.93
  4. Step 4: Simplify right side
    198,796.99x = 29,670,728,892.67
  5. Step 5: Solve for x
    x = 29,670,728,892.67/198,796.99
  6. Step 6: Final answer
    x = 149,251.40

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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.