Home / 397,704.27-548,844.30-225,629.49

Finding the Fourth Proportional to 397,704.27, 548,844.30 and 225,629.49

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Solution

The fourth proportional to 397,704.27, 548,844.30 and 225,629.49 is: 311,375.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,704.27 : 548,844.30 = 225,629.49 : x
  2. Step 2: Convert to fraction form
    397,704.27/548,844.30 = 225,629.49/x
  3. Step 3: Cross multiply
    397,704.27x = 548,844.30 × 225,629.49
  4. Step 4: Simplify right side
    397,704.27x = 123,835,459,498.41
  5. Step 5: Solve for x
    x = 123,835,459,498.41/397,704.27
  6. Step 6: Final answer
    x = 311,375.74

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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.