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Finding the Fourth Proportional to 198,892.49, 298,339.54 and 80,566.07

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Solution

The fourth proportional to 198,892.49, 298,339.54 and 80,566.07 is: 120,849.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,892.49 : 298,339.54 = 80,566.07 : x
  2. Step 2: Convert to fraction form
    198,892.49/298,339.54 = 80,566.07/x
  3. Step 3: Cross multiply
    198,892.49x = 298,339.54 × 80,566.07
  4. Step 4: Simplify right side
    198,892.49x = 24,036,042,570.29
  5. Step 5: Solve for x
    x = 24,036,042,570.29/198,892.49
  6. Step 6: Final answer
    x = 120,849.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.