Home / 215,977.83-324,028.92-66,240.08

Finding the Fourth Proportional to 215,977.83, 324,028.92 and 66,240.08

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Solution

The fourth proportional to 215,977.83, 324,028.92 and 66,240.08 is: 99,379.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,977.83 : 324,028.92 = 66,240.08 : x
  2. Step 2: Convert to fraction form
    215,977.83/324,028.92 = 66,240.08/x
  3. Step 3: Cross multiply
    215,977.83x = 324,028.92 × 66,240.08
  4. Step 4: Simplify right side
    215,977.83x = 21,463,701,426.48
  5. Step 5: Solve for x
    x = 21,463,701,426.48/215,977.83
  6. Step 6: Final answer
    x = 99,379.19

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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.