Home / 204,550.20-306,953.10-78,201.14

Finding the Fourth Proportional to 204,550.20, 306,953.10 and 78,201.14

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Solution

The fourth proportional to 204,550.20, 306,953.10 and 78,201.14 is: 117,350.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,550.20 : 306,953.10 = 78,201.14 : x
  2. Step 2: Convert to fraction form
    204,550.20/306,953.10 = 78,201.14/x
  3. Step 3: Cross multiply
    204,550.20x = 306,953.10 × 78,201.14
  4. Step 4: Simplify right side
    204,550.20x = 24,004,080,811.77
  5. Step 5: Solve for x
    x = 24,004,080,811.77/204,550.20
  6. Step 6: Final answer
    x = 117,350.56

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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.