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Finding the Fourth Proportional to 300,866.87, 415,385.06 and 193,623.27

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Solution

The fourth proportional to 300,866.87, 415,385.06 and 193,623.27 is: 267,321.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,866.87 : 415,385.06 = 193,623.27 : x
  2. Step 2: Convert to fraction form
    300,866.87/415,385.06 = 193,623.27/x
  3. Step 3: Cross multiply
    300,866.87x = 415,385.06 × 193,623.27
  4. Step 4: Simplify right side
    300,866.87x = 80,428,212,658.23
  5. Step 5: Solve for x
    x = 80,428,212,658.23/300,866.87
  6. Step 6: Final answer
    x = 267,321.60

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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.