Home / 306,190.75-422,519.30-170,216.42

Finding the Fourth Proportional to 306,190.75, 422,519.30 and 170,216.42

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Solution

The fourth proportional to 306,190.75, 422,519.30 and 170,216.42 is: 234,885.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,190.75 : 422,519.30 = 170,216.42 : x
  2. Step 2: Convert to fraction form
    306,190.75/422,519.30 = 170,216.42/x
  3. Step 3: Cross multiply
    306,190.75x = 422,519.30 × 170,216.42
  4. Step 4: Simplify right side
    306,190.75x = 71,919,722,626.91
  5. Step 5: Solve for x
    x = 71,919,722,626.91/306,190.75
  6. Step 6: Final answer
    x = 234,885.35

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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.