Home / 330,739.20-495,561.60-190,252.80

Finding the Fourth Proportional to 330,739.20, 495,561.60 and 190,252.80

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Solution

The fourth proportional to 330,739.20, 495,561.60 and 190,252.80 is: 285,064.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,739.20 : 495,561.60 = 190,252.80 : x
  2. Step 2: Convert to fraction form
    330,739.20/495,561.60 = 190,252.80/x
  3. Step 3: Cross multiply
    330,739.20x = 495,561.60 × 190,252.80
  4. Step 4: Simplify right side
    330,739.20x = 94,281,981,972.48
  5. Step 5: Solve for x
    x = 94,281,981,972.48/330,739.20
  6. Step 6: Final answer
    x = 285,064.43

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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.