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Finding the Fourth Proportional to 331,812, 457,912.08 and 188,578.08

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Solution

The fourth proportional to 331,812, 457,912.08 and 188,578.08 is: 260,244.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,812 : 457,912.08 = 188,578.08 : x
  2. Step 2: Convert to fraction form
    331,812/457,912.08 = 188,578.08/x
  3. Step 3: Cross multiply
    331,812x = 457,912.08 × 188,578.08
  4. Step 4: Simplify right side
    331,812x = 86,352,180,855.21
  5. Step 5: Solve for x
    x = 86,352,180,855.21/331,812
  6. Step 6: Final answer
    x = 260,244.30

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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.