Home / 324,477.20-486,629.40-99,837.20

Finding the Fourth Proportional to 324,477.20, 486,629.40 and 99,837.20

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Solution

The fourth proportional to 324,477.20, 486,629.40 and 99,837.20 is: 149,729.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,477.20 : 486,629.40 = 99,837.20 : x
  2. Step 2: Convert to fraction form
    324,477.20/486,629.40 = 99,837.20/x
  3. Step 3: Cross multiply
    324,477.20x = 486,629.40 × 99,837.20
  4. Step 4: Simplify right side
    324,477.20x = 48,583,716,733.68
  5. Step 5: Solve for x
    x = 48,583,716,733.68/324,477.20
  6. Step 6: Final answer
    x = 149,729.22

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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.