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Finding the Fourth Proportional to 355,517.53, 490,614.20 and 194,372.58

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Solution

The fourth proportional to 355,517.53, 490,614.20 and 194,372.58 is: 268,234.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,517.53 : 490,614.20 = 194,372.58 : x
  2. Step 2: Convert to fraction form
    355,517.53/490,614.20 = 194,372.58/x
  3. Step 3: Cross multiply
    355,517.53x = 490,614.20 × 194,372.58
  4. Step 4: Simplify right side
    355,517.53x = 95,361,947,838.64
  5. Step 5: Solve for x
    x = 95,361,947,838.64/355,517.53
  6. Step 6: Final answer
    x = 268,234.17

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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.