Home / 306,612.03-422,884.55-199,216.97

Finding the Fourth Proportional to 306,612.03, 422,884.55 and 199,216.97

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Solution

The fourth proportional to 306,612.03, 422,884.55 and 199,216.97 is: 274,763.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,612.03 : 422,884.55 = 199,216.97 : x
  2. Step 2: Convert to fraction form
    306,612.03/422,884.55 = 199,216.97/x
  3. Step 3: Cross multiply
    306,612.03x = 422,884.55 × 199,216.97
  4. Step 4: Simplify right side
    306,612.03x = 84,245,777,559.65
  5. Step 5: Solve for x
    x = 84,245,777,559.65/306,612.03
  6. Step 6: Final answer
    x = 274,763.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.