Home / 220,255.20-329,945.40-131,244.30

Finding the Fourth Proportional to 220,255.20, 329,945.40 and 131,244.30

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Solution

The fourth proportional to 220,255.20, 329,945.40 and 131,244.30 is: 196,605.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,255.20 : 329,945.40 = 131,244.30 : x
  2. Step 2: Convert to fraction form
    220,255.20/329,945.40 = 131,244.30/x
  3. Step 3: Cross multiply
    220,255.20x = 329,945.40 × 131,244.30
  4. Step 4: Simplify right side
    220,255.20x = 43,303,453,061.22
  5. Step 5: Solve for x
    x = 43,303,453,061.22/220,255.20
  6. Step 6: Final answer
    x = 196,605.81

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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.