Home / 204,992.31-307,276.25-99,680.43

Finding the Fourth Proportional to 204,992.31, 307,276.25 and 99,680.43

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Solution

The fourth proportional to 204,992.31, 307,276.25 and 99,680.43 is: 149,417.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,992.31 : 307,276.25 = 99,680.43 : x
  2. Step 2: Convert to fraction form
    204,992.31/307,276.25 = 99,680.43/x
  3. Step 3: Cross multiply
    204,992.31x = 307,276.25 × 99,680.43
  4. Step 4: Simplify right side
    204,992.31x = 30,629,428,230.39
  5. Step 5: Solve for x
    x = 30,629,428,230.39/204,992.31
  6. Step 6: Final answer
    x = 149,417.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.