Home / 214,578.54-321,889.05-74,336.22

Finding the Fourth Proportional to 214,578.54, 321,889.05 and 74,336.22

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Solution

The fourth proportional to 214,578.54, 321,889.05 and 74,336.22 is: 111,511.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,578.54 : 321,889.05 = 74,336.22 : x
  2. Step 2: Convert to fraction form
    214,578.54/321,889.05 = 74,336.22/x
  3. Step 3: Cross multiply
    214,578.54x = 321,889.05 × 74,336.22
  4. Step 4: Simplify right side
    214,578.54x = 23,928,015,236.39
  5. Step 5: Solve for x
    x = 23,928,015,236.39/214,578.54
  6. Step 6: Final answer
    x = 111,511.69

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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.