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Finding the Fourth Proportional to 381,797.88, 526,866.62 and 212,042.94

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Solution

The fourth proportional to 381,797.88, 526,866.62 and 212,042.94 is: 292,611.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,797.88 : 526,866.62 = 212,042.94 : x
  2. Step 2: Convert to fraction form
    381,797.88/526,866.62 = 212,042.94/x
  3. Step 3: Cross multiply
    381,797.88x = 526,866.62 × 212,042.94
  4. Step 4: Simplify right side
    381,797.88x = 111,718,347,092.66
  5. Step 5: Solve for x
    x = 111,718,347,092.66/381,797.88
  6. Step 6: Final answer
    x = 292,611.23

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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.