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Finding the Fourth Proportional to 262,308.30, 394,240.05 and 228,093.90

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Solution

The fourth proportional to 262,308.30, 394,240.05 and 228,093.90 is: 342,817.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,308.30 : 394,240.05 = 228,093.90 : x
  2. Step 2: Convert to fraction form
    262,308.30/394,240.05 = 228,093.90/x
  3. Step 3: Cross multiply
    262,308.30x = 394,240.05 × 228,093.90
  4. Step 4: Simplify right side
    262,308.30x = 89,923,750,540.70
  5. Step 5: Solve for x
    x = 89,923,750,540.70/262,308.30
  6. Step 6: Final answer
    x = 342,817.02

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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.