Home / 400,519.08-552,716.52-219,231.96

Finding the Fourth Proportional to 400,519.08, 552,716.52 and 219,231.96

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Solution

The fourth proportional to 400,519.08, 552,716.52 and 219,231.96 is: 302,540.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,519.08 : 552,716.52 = 219,231.96 : x
  2. Step 2: Convert to fraction form
    400,519.08/552,716.52 = 219,231.96/x
  3. Step 3: Cross multiply
    400,519.08x = 552,716.52 × 219,231.96
  4. Step 4: Simplify right side
    400,519.08x = 121,173,126,003.98
  5. Step 5: Solve for x
    x = 121,173,126,003.98/400,519.08
  6. Step 6: Final answer
    x = 302,540.21

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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.