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Finding the Fourth Proportional to 329,611.20, 494,301.60 and 171,787.20

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Solution

The fourth proportional to 329,611.20, 494,301.60 and 171,787.20 is: 257,620.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,611.20 : 494,301.60 = 171,787.20 : x
  2. Step 2: Convert to fraction form
    329,611.20/494,301.60 = 171,787.20/x
  3. Step 3: Cross multiply
    329,611.20x = 494,301.60 × 171,787.20
  4. Step 4: Simplify right side
    329,611.20x = 84,914,687,819.52
  5. Step 5: Solve for x
    x = 84,914,687,819.52/329,611.20
  6. Step 6: Final answer
    x = 257,620.76

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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.