Home / 324,851.21-486,949.55-135,416.37

Finding the Fourth Proportional to 324,851.21, 486,949.55 and 135,416.37

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Solution

The fourth proportional to 324,851.21, 486,949.55 and 135,416.37 is: 202,988.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,851.21 : 486,949.55 = 135,416.37 : x
  2. Step 2: Convert to fraction form
    324,851.21/486,949.55 = 135,416.37/x
  3. Step 3: Cross multiply
    324,851.21x = 486,949.55 × 135,416.37
  4. Step 4: Simplify right side
    324,851.21x = 65,940,939,757.05
  5. Step 5: Solve for x
    x = 65,940,939,757.05/324,851.21
  6. Step 6: Final answer
    x = 202,988.13

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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.