Home / 306,131.37-422,432.30-170,149.17

Finding the Fourth Proportional to 306,131.37, 422,432.30 and 170,149.17

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Solution

The fourth proportional to 306,131.37, 422,432.30 and 170,149.17 is: 234,789.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,131.37 : 422,432.30 = 170,149.17 : x
  2. Step 2: Convert to fraction form
    306,131.37/422,432.30 = 170,149.17/x
  3. Step 3: Cross multiply
    306,131.37x = 422,432.30 × 170,149.17
  4. Step 4: Simplify right side
    306,131.37x = 71,876,504,375.45
  5. Step 5: Solve for x
    x = 71,876,504,375.45/306,131.37
  6. Step 6: Final answer
    x = 234,789.74

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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.