Home / 204,920.66-307,390.40-76,867.55

Finding the Fourth Proportional to 204,920.66, 307,390.40 and 76,867.55

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Solution

The fourth proportional to 204,920.66, 307,390.40 and 76,867.55 is: 115,304.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,920.66 : 307,390.40 = 76,867.55 : x
  2. Step 2: Convert to fraction form
    204,920.66/307,390.40 = 76,867.55/x
  3. Step 3: Cross multiply
    204,920.66x = 307,390.40 × 76,867.55
  4. Step 4: Simplify right side
    204,920.66x = 23,628,345,020.23
  5. Step 5: Solve for x
    x = 23,628,345,020.23/204,920.66
  6. Step 6: Final answer
    x = 115,304.85

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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.