Home / 306,169.86-422,481.33-170,209.65

Finding the Fourth Proportional to 306,169.86, 422,481.33 and 170,209.65

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Solution

The fourth proportional to 306,169.86, 422,481.33 and 170,209.65 is: 234,870.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,169.86 : 422,481.33 = 170,209.65 : x
  2. Step 2: Convert to fraction form
    306,169.86/422,481.33 = 170,209.65/x
  3. Step 3: Cross multiply
    306,169.86x = 422,481.33 × 170,209.65
  4. Step 4: Simplify right side
    306,169.86x = 71,910,399,310.83
  5. Step 5: Solve for x
    x = 71,910,399,310.83/306,169.86
  6. Step 6: Final answer
    x = 234,870.93

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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.