Home / 222,196.09-306,635.06-131,518.97

Finding the Fourth Proportional to 222,196.09, 306,635.06 and 131,518.97

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Solution

The fourth proportional to 222,196.09, 306,635.06 and 131,518.97 is: 181,498.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,196.09 : 306,635.06 = 131,518.97 : x
  2. Step 2: Convert to fraction form
    222,196.09/306,635.06 = 131,518.97/x
  3. Step 3: Cross multiply
    222,196.09x = 306,635.06 × 131,518.97
  4. Step 4: Simplify right side
    222,196.09x = 40,328,325,415.44
  5. Step 5: Solve for x
    x = 40,328,325,415.44/222,196.09
  6. Step 6: Final answer
    x = 181,498.81

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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.