Home / 204,974.20-307,538.10-80,404.60

Finding the Fourth Proportional to 204,974.20, 307,538.10 and 80,404.60

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Solution

The fourth proportional to 204,974.20, 307,538.10 and 80,404.60 is: 120,637.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,974.20 : 307,538.10 = 80,404.60 : x
  2. Step 2: Convert to fraction form
    204,974.20/307,538.10 = 80,404.60/x
  3. Step 3: Cross multiply
    204,974.20x = 307,538.10 × 80,404.60
  4. Step 4: Simplify right side
    204,974.20x = 24,727,477,915.26
  5. Step 5: Solve for x
    x = 24,727,477,915.26/204,974.20
  6. Step 6: Final answer
    x = 120,637.03

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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.