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Finding the Fourth Proportional to 300,493.80, 450,691.49 and 111,042.87

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Solution

The fourth proportional to 300,493.80, 450,691.49 and 111,042.87 is: 166,546.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,493.80 : 450,691.49 = 111,042.87 : x
  2. Step 2: Convert to fraction form
    300,493.80/450,691.49 = 111,042.87/x
  3. Step 3: Cross multiply
    300,493.80x = 450,691.49 × 111,042.87
  4. Step 4: Simplify right side
    300,493.80x = 50,046,078,924.40
  5. Step 5: Solve for x
    x = 50,046,078,924.40/300,493.80
  6. Step 6: Final answer
    x = 166,546.13

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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.