Home / 220,550.52-304,350.60-129,910.20

Finding the Fourth Proportional to 220,550.52, 304,350.60 and 129,910.20

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Solution

The fourth proportional to 220,550.52, 304,350.60 and 129,910.20 is: 179,270.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,550.52 : 304,350.60 = 129,910.20 : x
  2. Step 2: Convert to fraction form
    220,550.52/304,350.60 = 129,910.20/x
  3. Step 3: Cross multiply
    220,550.52x = 304,350.60 × 129,910.20
  4. Step 4: Simplify right side
    220,550.52x = 39,538,247,316.12
  5. Step 5: Solve for x
    x = 39,538,247,316.12/220,550.52
  6. Step 6: Final answer
    x = 179,270.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.