Home / 220,829.20-331,243.80-157,843.60

Finding the Fourth Proportional to 220,829.20, 331,243.80 and 157,843.60

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Solution

The fourth proportional to 220,829.20, 331,243.80 and 157,843.60 is: 236,765.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,829.20 : 331,243.80 = 157,843.60 : x
  2. Step 2: Convert to fraction form
    220,829.20/331,243.80 = 157,843.60/x
  3. Step 3: Cross multiply
    220,829.20x = 331,243.80 × 157,843.60
  4. Step 4: Simplify right side
    220,829.20x = 52,284,713,869.68
  5. Step 5: Solve for x
    x = 52,284,713,869.68/220,829.20
  6. Step 6: Final answer
    x = 236,765.40

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1.5x scale

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.