Home / 394,201.08-543,997.32-212,912.94

Finding the Fourth Proportional to 394,201.08, 543,997.32 and 212,912.94

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Solution

The fourth proportional to 394,201.08, 543,997.32 and 212,912.94 is: 293,819.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,201.08 : 543,997.32 = 212,912.94 : x
  2. Step 2: Convert to fraction form
    394,201.08/543,997.32 = 212,912.94/x
  3. Step 3: Cross multiply
    394,201.08x = 543,997.32 × 212,912.94
  4. Step 4: Simplify right side
    394,201.08x = 115,824,068,753.32
  5. Step 5: Solve for x
    x = 115,824,068,753.32/394,201.08
  6. Step 6: Final answer
    x = 293,819.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.