Home / 397,115.31-548,023.37-215,827.25

Finding the Fourth Proportional to 397,115.31, 548,023.37 and 215,827.25

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Solution

The fourth proportional to 397,115.31, 548,023.37 and 215,827.25 is: 297,843.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,115.31 : 548,023.37 = 215,827.25 : x
  2. Step 2: Convert to fraction form
    397,115.31/548,023.37 = 215,827.25/x
  3. Step 3: Cross multiply
    397,115.31x = 548,023.37 × 215,827.25
  4. Step 4: Simplify right side
    397,115.31x = 118,278,377,360.24
  5. Step 5: Solve for x
    x = 118,278,377,360.24/397,115.31
  6. Step 6: Final answer
    x = 297,843.91

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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.