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Finding the Fourth Proportional to 262,645.20, 394,428.60 and 254,350.80

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Solution

The fourth proportional to 262,645.20, 394,428.60 and 254,350.80 is: 381,972.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,645.20 : 394,428.60 = 254,350.80 : x
  2. Step 2: Convert to fraction form
    262,645.20/394,428.60 = 254,350.80/x
  3. Step 3: Cross multiply
    262,645.20x = 394,428.60 × 254,350.80
  4. Step 4: Simplify right side
    262,645.20x = 100,323,229,952.88
  5. Step 5: Solve for x
    x = 100,323,229,952.88/262,645.20
  6. Step 6: Final answer
    x = 381,972.45

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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.