Home / 306,231.12-422,618.09-170,295.48

Finding the Fourth Proportional to 306,231.12, 422,618.09 and 170,295.48

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Solution

The fourth proportional to 306,231.12, 422,618.09 and 170,295.48 is: 235,018.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,231.12 : 422,618.09 = 170,295.48 : x
  2. Step 2: Convert to fraction form
    306,231.12/422,618.09 = 170,295.48/x
  3. Step 3: Cross multiply
    306,231.12x = 422,618.09 × 170,295.48
  4. Step 4: Simplify right side
    306,231.12x = 71,969,949,641.76
  5. Step 5: Solve for x
    x = 71,969,949,641.76/306,231.12
  6. Step 6: Final answer
    x = 235,018.41

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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.