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Finding the Fourth Proportional to 392,606.46, 541,768.77 and 220,515.48

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Solution

The fourth proportional to 392,606.46, 541,768.77 and 220,515.48 is: 304,295.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,606.46 : 541,768.77 = 220,515.48 : x
  2. Step 2: Convert to fraction form
    392,606.46/541,768.77 = 220,515.48/x
  3. Step 3: Cross multiply
    392,606.46x = 541,768.77 × 220,515.48
  4. Step 4: Simplify right side
    392,606.46x = 119,468,400,365.56
  5. Step 5: Solve for x
    x = 119,468,400,365.56/392,606.46
  6. Step 6: Final answer
    x = 304,295.55

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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.