Home / 218,932.80-328,399.20-185,107.20

Finding the Fourth Proportional to 218,932.80, 328,399.20 and 185,107.20

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Solution

The fourth proportional to 218,932.80, 328,399.20 and 185,107.20 is: 277,660.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,932.80 : 328,399.20 = 185,107.20 : x
  2. Step 2: Convert to fraction form
    218,932.80/328,399.20 = 185,107.20/x
  3. Step 3: Cross multiply
    218,932.80x = 328,399.20 × 185,107.20
  4. Step 4: Simplify right side
    218,932.80x = 60,789,056,394.24
  5. Step 5: Solve for x
    x = 60,789,056,394.24/218,932.80
  6. Step 6: Final answer
    x = 277,660.80

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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.