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Finding the Fourth Proportional to 198,165.54, 297,303.42 and 79,809.18

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Solution

The fourth proportional to 198,165.54, 297,303.42 and 79,809.18 is: 119,735.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,165.54 : 297,303.42 = 79,809.18 : x
  2. Step 2: Convert to fraction form
    198,165.54/297,303.42 = 79,809.18/x
  3. Step 3: Cross multiply
    198,165.54x = 297,303.42 × 79,809.18
  4. Step 4: Simplify right side
    198,165.54x = 23,727,542,161.40
  5. Step 5: Solve for x
    x = 23,727,542,161.40/198,165.54
  6. Step 6: Final answer
    x = 119,735.96

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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.