Home / 324,420.20-486,324.03-156,035.78

Finding the Fourth Proportional to 324,420.20, 486,324.03 and 156,035.78

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Solution

The fourth proportional to 324,420.20, 486,324.03 and 156,035.78 is: 233,906.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,420.20 : 486,324.03 = 156,035.78 : x
  2. Step 2: Convert to fraction form
    324,420.20/486,324.03 = 156,035.78/x
  3. Step 3: Cross multiply
    324,420.20x = 486,324.03 × 156,035.78
  4. Step 4: Simplify right side
    324,420.20x = 75,883,949,353.79
  5. Step 5: Solve for x
    x = 75,883,949,353.79/324,420.20
  6. Step 6: Final answer
    x = 233,906.36

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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.