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Finding the Fourth Proportional to 307,906.88, 424,874 and 171,948.38

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Solution

The fourth proportional to 307,906.88, 424,874 and 171,948.38 is: 237,267.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,906.88 : 424,874 = 171,948.38 : x
  2. Step 2: Convert to fraction form
    307,906.88/424,874 = 171,948.38/x
  3. Step 3: Cross multiply
    307,906.88x = 424,874 × 171,948.38
  4. Step 4: Simplify right side
    307,906.88x = 73,056,396,004.12
  5. Step 5: Solve for x
    x = 73,056,396,004.12/307,906.88
  6. Step 6: Final answer
    x = 237,267.83

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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.