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Finding the Fourth Proportional to 262,834.40, 394,035.60 and 113,189.60

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Solution

The fourth proportional to 262,834.40, 394,035.60 and 113,189.60 is: 169,691.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,834.40 : 394,035.60 = 113,189.60 : x
  2. Step 2: Convert to fraction form
    262,834.40/394,035.60 = 113,189.60/x
  3. Step 3: Cross multiply
    262,834.40x = 394,035.60 × 113,189.60
  4. Step 4: Simplify right side
    262,834.40x = 44,600,731,949.76
  5. Step 5: Solve for x
    x = 44,600,731,949.76/262,834.40
  6. Step 6: Final answer
    x = 169,691.38

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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.