Home / 220,727.20-331,090.80-54,515.20

Finding the Fourth Proportional to 220,727.20, 331,090.80 and 54,515.20

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Solution

The fourth proportional to 220,727.20, 331,090.80 and 54,515.20 is: 81,772.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,727.20 : 331,090.80 = 54,515.20 : x
  2. Step 2: Convert to fraction form
    220,727.20/331,090.80 = 54,515.20/x
  3. Step 3: Cross multiply
    220,727.20x = 331,090.80 × 54,515.20
  4. Step 4: Simplify right side
    220,727.20x = 18,049,481,180.16
  5. Step 5: Solve for x
    x = 18,049,481,180.16/220,727.20
  6. Step 6: Final answer
    x = 81,772.80

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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.