Home / 219,028.20-328,542.30-196,909.80

Finding the Fourth Proportional to 219,028.20, 328,542.30 and 196,909.80

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Solution

The fourth proportional to 219,028.20, 328,542.30 and 196,909.80 is: 295,364.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,028.20 : 328,542.30 = 196,909.80 : x
  2. Step 2: Convert to fraction form
    219,028.20/328,542.30 = 196,909.80/x
  3. Step 3: Cross multiply
    219,028.20x = 328,542.30 × 196,909.80
  4. Step 4: Simplify right side
    219,028.20x = 64,693,198,584.54
  5. Step 5: Solve for x
    x = 64,693,198,584.54/219,028.20
  6. Step 6: Final answer
    x = 295,364.70

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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.