Home / 215,182.24-322,904.88-126,608.80

Finding the Fourth Proportional to 215,182.24, 322,904.88 and 126,608.80

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Solution

The fourth proportional to 215,182.24, 322,904.88 and 126,608.80 is: 189,990.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,182.24 : 322,904.88 = 126,608.80 : x
  2. Step 2: Convert to fraction form
    215,182.24/322,904.88 = 126,608.80/x
  3. Step 3: Cross multiply
    215,182.24x = 322,904.88 × 126,608.80
  4. Step 4: Simplify right side
    215,182.24x = 40,882,599,370.94
  5. Step 5: Solve for x
    x = 40,882,599,370.94/215,182.24
  6. Step 6: Final answer
    x = 189,990.58

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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.