Home / 215,178.28-321,899.10-192,770.44

Finding the Fourth Proportional to 215,178.28, 321,899.10 and 192,770.44

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Solution

The fourth proportional to 215,178.28, 321,899.10 and 192,770.44 is: 288,377.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,178.28 : 321,899.10 = 192,770.44 : x
  2. Step 2: Convert to fraction form
    215,178.28/321,899.10 = 192,770.44/x
  3. Step 3: Cross multiply
    215,178.28x = 321,899.10 × 192,770.44
  4. Step 4: Simplify right side
    215,178.28x = 62,052,631,142.60
  5. Step 5: Solve for x
    x = 62,052,631,142.60/215,178.28
  6. Step 6: Final answer
    x = 288,377.76

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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.