Home / 397,120.56-548,028.96-215,832.88

Finding the Fourth Proportional to 397,120.56, 548,028.96 and 215,832.88

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Solution

The fourth proportional to 397,120.56, 548,028.96 and 215,832.88 is: 297,850.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,120.56 : 548,028.96 = 215,832.88 : x
  2. Step 2: Convert to fraction form
    397,120.56/548,028.96 = 215,832.88/x
  3. Step 3: Cross multiply
    397,120.56x = 548,028.96 × 215,832.88
  4. Step 4: Simplify right side
    397,120.56x = 118,282,668,760.21
  5. Step 5: Solve for x
    x = 118,282,668,760.21/397,120.56
  6. Step 6: Final answer
    x = 297,850.78

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1.5x scale

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.