Home / 218,727.42-328,136.90-92,367.96

Finding the Fourth Proportional to 218,727.42, 328,136.90 and 92,367.96

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Solution

The fourth proportional to 218,727.42, 328,136.90 and 92,367.96 is: 138,571.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,727.42 : 328,136.90 = 92,367.96 : x
  2. Step 2: Convert to fraction form
    218,727.42/328,136.90 = 92,367.96/x
  3. Step 3: Cross multiply
    218,727.42x = 328,136.90 × 92,367.96
  4. Step 4: Simplify right side
    218,727.42x = 30,309,336,053.72
  5. Step 5: Solve for x
    x = 30,309,336,053.72/218,727.42
  6. Step 6: Final answer
    x = 138,571.27

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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.