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Finding the Fourth Proportional to 201,317.28, 301,788.20 and 68,104.85

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Solution

The fourth proportional to 201,317.28, 301,788.20 and 68,104.85 is: 102,093.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,317.28 : 301,788.20 = 68,104.85 : x
  2. Step 2: Convert to fraction form
    201,317.28/301,788.20 = 68,104.85/x
  3. Step 3: Cross multiply
    201,317.28x = 301,788.20 × 68,104.85
  4. Step 4: Simplify right side
    201,317.28x = 20,553,238,243.30
  5. Step 5: Solve for x
    x = 20,553,238,243.30/201,317.28
  6. Step 6: Final answer
    x = 102,093.76

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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.