Home / 307,619.82-424,464.39-205,481.43

Finding the Fourth Proportional to 307,619.82, 424,464.39 and 205,481.43

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Solution

The fourth proportional to 307,619.82, 424,464.39 and 205,481.43 is: 283,530.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,619.82 : 424,464.39 = 205,481.43 : x
  2. Step 2: Convert to fraction form
    307,619.82/424,464.39 = 205,481.43/x
  3. Step 3: Cross multiply
    307,619.82x = 424,464.39 × 205,481.43
  4. Step 4: Simplify right side
    307,619.82x = 87,219,549,841.28
  5. Step 5: Solve for x
    x = 87,219,549,841.28/307,619.82
  6. Step 6: Final answer
    x = 283,530.33

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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.