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Finding the Fourth Proportional to 231,606, 319,616.28 and 125,622

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Solution

The fourth proportional to 231,606, 319,616.28 and 125,622 is: 173,358.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,606 : 319,616.28 = 125,622 : x
  2. Step 2: Convert to fraction form
    231,606/319,616.28 = 125,622/x
  3. Step 3: Cross multiply
    231,606x = 319,616.28 × 125,622
  4. Step 4: Simplify right side
    231,606x = 40,150,836,326.16
  5. Step 5: Solve for x
    x = 40,150,836,326.16/231,606
  6. Step 6: Final answer
    x = 173,358.36

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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.