Home / 220,786.20-330,839.10-164,361.60

Finding the Fourth Proportional to 220,786.20, 330,839.10 and 164,361.60

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Solution

The fourth proportional to 220,786.20, 330,839.10 and 164,361.60 is: 246,289.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,786.20 : 330,839.10 = 164,361.60 : x
  2. Step 2: Convert to fraction form
    220,786.20/330,839.10 = 164,361.60/x
  3. Step 3: Cross multiply
    220,786.20x = 330,839.10 × 164,361.60
  4. Step 4: Simplify right side
    220,786.20x = 54,377,243,818.56
  5. Step 5: Solve for x
    x = 54,377,243,818.56/220,786.20
  6. Step 6: Final answer
    x = 246,289.14

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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.