Home / 324,261.20-486,132.60-137,118.80

Finding the Fourth Proportional to 324,261.20, 486,132.60 and 137,118.80

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Solution

The fourth proportional to 324,261.20, 486,132.60 and 137,118.80 is: 205,568.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,261.20 : 486,132.60 = 137,118.80 : x
  2. Step 2: Convert to fraction form
    324,261.20/486,132.60 = 137,118.80/x
  3. Step 3: Cross multiply
    324,261.20x = 486,132.60 × 137,118.80
  4. Step 4: Simplify right side
    324,261.20x = 66,657,918,752.88
  5. Step 5: Solve for x
    x = 66,657,918,752.88/324,261.20
  6. Step 6: Final answer
    x = 205,568.59

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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.