Home / 254,408.20-381,612.30-225,539.80

Finding the Fourth Proportional to 254,408.20, 381,612.30 and 225,539.80

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Solution

The fourth proportional to 254,408.20, 381,612.30 and 225,539.80 is: 338,309.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,408.20 : 381,612.30 = 225,539.80 : x
  2. Step 2: Convert to fraction form
    254,408.20/381,612.30 = 225,539.80/x
  3. Step 3: Cross multiply
    254,408.20x = 381,612.30 × 225,539.80
  4. Step 4: Simplify right side
    254,408.20x = 86,068,761,819.54
  5. Step 5: Solve for x
    x = 86,068,761,819.54/254,408.20
  6. Step 6: Final answer
    x = 338,309.70

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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.