Home / 397,115.82-548,023.47-215,828.24

Finding the Fourth Proportional to 397,115.82, 548,023.47 and 215,828.24

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Solution

The fourth proportional to 397,115.82, 548,023.47 and 215,828.24 is: 297,844.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,115.82 : 548,023.47 = 215,828.24 : x
  2. Step 2: Convert to fraction form
    397,115.82/548,023.47 = 215,828.24/x
  3. Step 3: Cross multiply
    397,115.82x = 548,023.47 × 215,828.24
  4. Step 4: Simplify right side
    397,115.82x = 118,278,941,008.79
  5. Step 5: Solve for x
    x = 118,278,941,008.79/397,115.82
  6. Step 6: Final answer
    x = 297,844.95

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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.