Home / 204,318.40-306,331.80-91,906.60

Finding the Fourth Proportional to 204,318.40, 306,331.80 and 91,906.60

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Solution

The fourth proportional to 204,318.40, 306,331.80 and 91,906.60 is: 137,794.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,318.40 : 306,331.80 = 91,906.60 : x
  2. Step 2: Convert to fraction form
    204,318.40/306,331.80 = 91,906.60/x
  3. Step 3: Cross multiply
    204,318.40x = 306,331.80 × 91,906.60
  4. Step 4: Simplify right side
    204,318.40x = 28,153,914,209.88
  5. Step 5: Solve for x
    x = 28,153,914,209.88/204,318.40
  6. Step 6: Final answer
    x = 137,794.32

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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.