Home / 397,141.14-548,058.42-215,853.48

Finding the Fourth Proportional to 397,141.14, 548,058.42 and 215,853.48

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Solution

The fourth proportional to 397,141.14, 548,058.42 and 215,853.48 is: 297,879.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,141.14 : 548,058.42 = 215,853.48 : x
  2. Step 2: Convert to fraction form
    397,141.14/548,058.42 = 215,853.48/x
  3. Step 3: Cross multiply
    397,141.14x = 548,058.42 × 215,853.48
  4. Step 4: Simplify right side
    397,141.14x = 118,300,317,200.30
  5. Step 5: Solve for x
    x = 118,300,317,200.30/397,141.14
  6. Step 6: Final answer
    x = 297,879.78

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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.