Home / 220,647.90-331,179.21-115,542.30

Finding the Fourth Proportional to 220,647.90, 331,179.21 and 115,542.30

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Solution

The fourth proportional to 220,647.90, 331,179.21 and 115,542.30 is: 173,422.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,647.90 : 331,179.21 = 115,542.30 : x
  2. Step 2: Convert to fraction form
    220,647.90/331,179.21 = 115,542.30/x
  3. Step 3: Cross multiply
    220,647.90x = 331,179.21 × 115,542.30
  4. Step 4: Simplify right side
    220,647.90x = 38,265,207,635.58
  5. Step 5: Solve for x
    x = 38,265,207,635.58/220,647.90
  6. Step 6: Final answer
    x = 173,422.03

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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.