Home / 394,133.50-543,904.20-212,845.41

Finding the Fourth Proportional to 394,133.50, 543,904.20 and 212,845.41

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Solution

The fourth proportional to 394,133.50, 543,904.20 and 212,845.41 is: 293,726.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,133.50 : 543,904.20 = 212,845.41 : x
  2. Step 2: Convert to fraction form
    394,133.50/543,904.20 = 212,845.41/x
  3. Step 3: Cross multiply
    394,133.50x = 543,904.20 × 212,845.41
  4. Step 4: Simplify right side
    394,133.50x = 115,767,512,449.72
  5. Step 5: Solve for x
    x = 115,767,512,449.72/394,133.50
  6. Step 6: Final answer
    x = 293,726.65

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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.