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Finding the Fourth Proportional to 330,181.44, 495,274.32 and 80,863.44

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Solution

The fourth proportional to 330,181.44, 495,274.32 and 80,863.44 is: 121,295.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,181.44 : 495,274.32 = 80,863.44 : x
  2. Step 2: Convert to fraction form
    330,181.44/495,274.32 = 80,863.44/x
  3. Step 3: Cross multiply
    330,181.44x = 495,274.32 × 80,863.44
  4. Step 4: Simplify right side
    330,181.44x = 40,049,585,258.86
  5. Step 5: Solve for x
    x = 40,049,585,258.86/330,181.44
  6. Step 6: Final answer
    x = 121,295.69

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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.