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Finding the Fourth Proportional to 330,198.60, 495,816.30 and 190,230.60

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Solution

The fourth proportional to 330,198.60, 495,816.30 and 190,230.60 is: 285,644.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,198.60 : 495,816.30 = 190,230.60 : x
  2. Step 2: Convert to fraction form
    330,198.60/495,816.30 = 190,230.60/x
  3. Step 3: Cross multiply
    330,198.60x = 495,816.30 × 190,230.60
  4. Step 4: Simplify right side
    330,198.60x = 94,319,432,238.78
  5. Step 5: Solve for x
    x = 94,319,432,238.78/330,198.60
  6. Step 6: Final answer
    x = 285,644.56

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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.