Home / 218,728.20-328,092.30-108,136.20

Finding the Fourth Proportional to 218,728.20, 328,092.30 and 108,136.20

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Solution

The fourth proportional to 218,728.20, 328,092.30 and 108,136.20 is: 162,204.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,728.20 : 328,092.30 = 108,136.20 : x
  2. Step 2: Convert to fraction form
    218,728.20/328,092.30 = 108,136.20/x
  3. Step 3: Cross multiply
    218,728.20x = 328,092.30 × 108,136.20
  4. Step 4: Simplify right side
    218,728.20x = 35,478,654,571.26
  5. Step 5: Solve for x
    x = 35,478,654,571.26/218,728.20
  6. Step 6: Final answer
    x = 162,204.30

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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.