Home / 215,906.68-324,140.66-166,021.81

Finding the Fourth Proportional to 215,906.68, 324,140.66 and 166,021.81

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Solution

The fourth proportional to 215,906.68, 324,140.66 and 166,021.81 is: 249,248.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,906.68 : 324,140.66 = 166,021.81 : x
  2. Step 2: Convert to fraction form
    215,906.68/324,140.66 = 166,021.81/x
  3. Step 3: Cross multiply
    215,906.68x = 324,140.66 × 166,021.81
  4. Step 4: Simplify right side
    215,906.68x = 53,814,419,067.79
  5. Step 5: Solve for x
    x = 53,814,419,067.79/215,906.68
  6. Step 6: Final answer
    x = 249,248.51

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1.5x scale

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.