Home / 202,138.20-302,769.90-179,976.60

Finding the Fourth Proportional to 202,138.20, 302,769.90 and 179,976.60

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Solution

The fourth proportional to 202,138.20, 302,769.90 and 179,976.60 is: 269,575.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,138.20 : 302,769.90 = 179,976.60 : x
  2. Step 2: Convert to fraction form
    202,138.20/302,769.90 = 179,976.60/x
  3. Step 3: Cross multiply
    202,138.20x = 302,769.90 × 179,976.60
  4. Step 4: Simplify right side
    202,138.20x = 54,491,497,184.34
  5. Step 5: Solve for x
    x = 54,491,497,184.34/202,138.20
  6. Step 6: Final answer
    x = 269,575.45

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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.