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Finding the Fourth Proportional to 355,396.52, 490,446 and 194,251.47

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Solution

The fourth proportional to 355,396.52, 490,446 and 194,251.47 is: 268,066.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,396.52 : 490,446 = 194,251.47 : x
  2. Step 2: Convert to fraction form
    355,396.52/490,446 = 194,251.47/x
  3. Step 3: Cross multiply
    355,396.52x = 490,446 × 194,251.47
  4. Step 4: Simplify right side
    355,396.52x = 95,269,856,455.62
  5. Step 5: Solve for x
    x = 95,269,856,455.62/355,396.52
  6. Step 6: Final answer
    x = 268,066.38

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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.