Home / 220,194.30-330,421.05-79,934.70

Finding the Fourth Proportional to 220,194.30, 330,421.05 and 79,934.70

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Solution

The fourth proportional to 220,194.30, 330,421.05 and 79,934.70 is: 119,949.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,194.30 : 330,421.05 = 79,934.70 : x
  2. Step 2: Convert to fraction form
    220,194.30/330,421.05 = 79,934.70/x
  3. Step 3: Cross multiply
    220,194.30x = 330,421.05 × 79,934.70
  4. Step 4: Simplify right side
    220,194.30x = 26,412,107,505.44
  5. Step 5: Solve for x
    x = 26,412,107,505.44/220,194.30
  6. Step 6: Final answer
    x = 119,949.10

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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.