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Finding the Fourth Proportional to 330,200.20, 495,300.30 and 80,882.20

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Solution

The fourth proportional to 330,200.20, 495,300.30 and 80,882.20 is: 121,323.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,200.20 : 495,300.30 = 80,882.20 : x
  2. Step 2: Convert to fraction form
    330,200.20/495,300.30 = 80,882.20/x
  3. Step 3: Cross multiply
    330,200.20x = 495,300.30 × 80,882.20
  4. Step 4: Simplify right side
    330,200.20x = 40,060,977,924.66
  5. Step 5: Solve for x
    x = 40,060,977,924.66/330,200.20
  6. Step 6: Final answer
    x = 121,323.30

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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.