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Finding the Fourth Proportional to 330,166.80, 495,243.96 and 80,850.96

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Solution

The fourth proportional to 330,166.80, 495,243.96 and 80,850.96 is: 121,274.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,166.80 : 495,243.96 = 80,850.96 : x
  2. Step 2: Convert to fraction form
    330,166.80/495,243.96 = 80,850.96/x
  3. Step 3: Cross multiply
    330,166.80x = 495,243.96 × 80,850.96
  4. Step 4: Simplify right side
    330,166.80x = 40,040,949,600.20
  5. Step 5: Solve for x
    x = 40,040,949,600.20/330,166.80
  6. Step 6: Final answer
    x = 121,274.91

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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.