Home / 379,069.20-523,107.72-206,992.40

Finding the Fourth Proportional to 379,069.20, 523,107.72 and 206,992.40

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Solution

The fourth proportional to 379,069.20, 523,107.72 and 206,992.40 is: 285,645.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,069.20 : 523,107.72 = 206,992.40 : x
  2. Step 2: Convert to fraction form
    379,069.20/523,107.72 = 206,992.40/x
  3. Step 3: Cross multiply
    379,069.20x = 523,107.72 × 206,992.40
  4. Step 4: Simplify right side
    379,069.20x = 108,279,319,805.79
  5. Step 5: Solve for x
    x = 108,279,319,805.79/379,069.20
  6. Step 6: Final answer
    x = 285,645.26

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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.