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Finding the Fourth Proportional to 392,206.37, 541,299.06 and 220,134.56

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Solution

The fourth proportional to 392,206.37, 541,299.06 and 220,134.56 is: 303,816.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,206.37 : 541,299.06 = 220,134.56 : x
  2. Step 2: Convert to fraction form
    392,206.37/541,299.06 = 220,134.56/x
  3. Step 3: Cross multiply
    392,206.37x = 541,299.06 × 220,134.56
  4. Step 4: Simplify right side
    392,206.37x = 119,158,627,695.02
  5. Step 5: Solve for x
    x = 119,158,627,695.02/392,206.37
  6. Step 6: Final answer
    x = 303,816.15

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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.