Home / 324,760.20-487,140.30-206,953.80

Finding the Fourth Proportional to 324,760.20, 487,140.30 and 206,953.80

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Solution

The fourth proportional to 324,760.20, 487,140.30 and 206,953.80 is: 310,430.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,760.20 : 487,140.30 = 206,953.80 : x
  2. Step 2: Convert to fraction form
    324,760.20/487,140.30 = 206,953.80/x
  3. Step 3: Cross multiply
    324,760.20x = 487,140.30 × 206,953.80
  4. Step 4: Simplify right side
    324,760.20x = 100,815,536,218.14
  5. Step 5: Solve for x
    x = 100,815,536,218.14/324,760.20
  6. Step 6: Final answer
    x = 310,430.70

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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.