Home / 397,163.18-548,085.88-215,874.61

Finding the Fourth Proportional to 397,163.18, 548,085.88 and 215,874.61

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Solution

The fourth proportional to 397,163.18, 548,085.88 and 215,874.61 is: 297,907.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,163.18 : 548,085.88 = 215,874.61 : x
  2. Step 2: Convert to fraction form
    397,163.18/548,085.88 = 215,874.61/x
  3. Step 3: Cross multiply
    397,163.18x = 548,085.88 × 215,874.61
  4. Step 4: Simplify right side
    397,163.18x = 118,317,825,736.93
  5. Step 5: Solve for x
    x = 118,317,825,736.93/397,163.18
  6. Step 6: Final answer
    x = 297,907.34

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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.