Home / 215,906.43-324,140.29-166,021.56

Finding the Fourth Proportional to 215,906.43, 324,140.29 and 166,021.56

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Solution

The fourth proportional to 215,906.43, 324,140.29 and 166,021.56 is: 249,248.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,906.43 : 324,140.29 = 166,021.56 : x
  2. Step 2: Convert to fraction form
    215,906.43/324,140.29 = 166,021.56/x
  3. Step 3: Cross multiply
    215,906.43x = 324,140.29 × 166,021.56
  4. Step 4: Simplify right side
    215,906.43x = 53,814,276,604.65
  5. Step 5: Solve for x
    x = 53,814,276,604.65/215,906.43
  6. Step 6: Final answer
    x = 249,248.14

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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.