Home / 397,122.54-548,033.30-215,834.46

Finding the Fourth Proportional to 397,122.54, 548,033.30 and 215,834.46

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Solution

The fourth proportional to 397,122.54, 548,033.30 and 215,834.46 is: 297,853.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,122.54 : 548,033.30 = 215,834.46 : x
  2. Step 2: Convert to fraction form
    397,122.54/548,033.30 = 215,834.46/x
  3. Step 3: Cross multiply
    397,122.54x = 548,033.30 × 215,834.46
  4. Step 4: Simplify right side
    397,122.54x = 118,284,471,367.52
  5. Step 5: Solve for x
    x = 118,284,471,367.52/397,122.54
  6. Step 6: Final answer
    x = 297,853.83

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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.