Home / 394,132.50-543,902.82-212,844.41

Finding the Fourth Proportional to 394,132.50, 543,902.82 and 212,844.41

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Solution

The fourth proportional to 394,132.50, 543,902.82 and 212,844.41 is: 293,725.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,132.50 : 543,902.82 = 212,844.41 : x
  2. Step 2: Convert to fraction form
    394,132.50/543,902.82 = 212,844.41/x
  3. Step 3: Cross multiply
    394,132.50x = 543,902.82 × 212,844.41
  4. Step 4: Simplify right side
    394,132.50x = 115,766,675,138.07
  5. Step 5: Solve for x
    x = 115,766,675,138.07/394,132.50
  6. Step 6: Final answer
    x = 293,725.27

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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.