Home / 263,136.20-394,704.30-210,648.20

Finding the Fourth Proportional to 263,136.20, 394,704.30 and 210,648.20

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Solution

The fourth proportional to 263,136.20, 394,704.30 and 210,648.20 is: 315,972.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,136.20 : 394,704.30 = 210,648.20 : x
  2. Step 2: Convert to fraction form
    263,136.20/394,704.30 = 210,648.20/x
  3. Step 3: Cross multiply
    263,136.20x = 394,704.30 × 210,648.20
  4. Step 4: Simplify right side
    263,136.20x = 83,143,750,327.26
  5. Step 5: Solve for x
    x = 83,143,750,327.26/263,136.20
  6. Step 6: Final answer
    x = 315,972.30

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Similar ratio
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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.