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Finding the Fourth Proportional to 307,183.20, 423,932.22 and 186,335.88

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Solution

The fourth proportional to 307,183.20, 423,932.22 and 186,335.88 is: 257,155.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,183.20 : 423,932.22 = 186,335.88 : x
  2. Step 2: Convert to fraction form
    307,183.20/423,932.22 = 186,335.88/x
  3. Step 3: Cross multiply
    307,183.20x = 423,932.22 × 186,335.88
  4. Step 4: Simplify right side
    307,183.20x = 78,993,783,274.05
  5. Step 5: Solve for x
    x = 78,993,783,274.05/307,183.20
  6. Step 6: Final answer
    x = 257,155.28

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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.