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Finding the Fourth Proportional to 257,367.88, 386,103.39 and 88,894.36

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Solution

The fourth proportional to 257,367.88, 386,103.39 and 88,894.36 is: 133,359.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,367.88 : 386,103.39 = 88,894.36 : x
  2. Step 2: Convert to fraction form
    257,367.88/386,103.39 = 88,894.36/x
  3. Step 3: Cross multiply
    257,367.88x = 386,103.39 × 88,894.36
  4. Step 4: Simplify right side
    257,367.88x = 34,322,413,747.88
  5. Step 5: Solve for x
    x = 34,322,413,747.88/257,367.88
  6. Step 6: Final answer
    x = 133,359.35

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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.