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Finding the Fourth Proportional to 330,168.60, 495,252.90 and 80,850.60

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Solution

The fourth proportional to 330,168.60, 495,252.90 and 80,850.60 is: 121,275.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,168.60 : 495,252.90 = 80,850.60 : x
  2. Step 2: Convert to fraction form
    330,168.60/495,252.90 = 80,850.60/x
  3. Step 3: Cross multiply
    330,168.60x = 495,252.90 × 80,850.60
  4. Step 4: Simplify right side
    330,168.60x = 40,041,494,116.74
  5. Step 5: Solve for x
    x = 40,041,494,116.74/330,168.60
  6. Step 6: Final answer
    x = 121,275.90

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1.5x scale

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.