Home / 324,416.20-486,293.10-219,245.80

Finding the Fourth Proportional to 324,416.20, 486,293.10 and 219,245.80

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Solution

The fourth proportional to 324,416.20, 486,293.10 and 219,245.80 is: 328,644.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,416.20 : 486,293.10 = 219,245.80 : x
  2. Step 2: Convert to fraction form
    324,416.20/486,293.10 = 219,245.80/x
  3. Step 3: Cross multiply
    324,416.20x = 486,293.10 × 219,245.80
  4. Step 4: Simplify right side
    324,416.20x = 106,617,719,743.98
  5. Step 5: Solve for x
    x = 106,617,719,743.98/324,416.20
  6. Step 6: Final answer
    x = 328,644.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.