Home / 214,538.20-321,796.85-79,628.54

Finding the Fourth Proportional to 214,538.20, 321,796.85 and 79,628.54

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Solution

The fourth proportional to 214,538.20, 321,796.85 and 79,628.54 is: 119,438.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,538.20 : 321,796.85 = 79,628.54 : x
  2. Step 2: Convert to fraction form
    214,538.20/321,796.85 = 79,628.54/x
  3. Step 3: Cross multiply
    214,538.20x = 321,796.85 × 79,628.54
  4. Step 4: Simplify right side
    214,538.20x = 25,624,211,334.97
  5. Step 5: Solve for x
    x = 25,624,211,334.97/214,538.20
  6. Step 6: Final answer
    x = 119,438.92

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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.