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Finding the Fourth Proportional to 355,324.49, 490,349.07 and 194,179.56

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Solution

The fourth proportional to 355,324.49, 490,349.07 and 194,179.56 is: 267,968.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,324.49 : 490,349.07 = 194,179.56 : x
  2. Step 2: Convert to fraction form
    355,324.49/490,349.07 = 194,179.56/x
  3. Step 3: Cross multiply
    355,324.49x = 490,349.07 × 194,179.56
  4. Step 4: Simplify right side
    355,324.49x = 95,215,766,659.01
  5. Step 5: Solve for x
    x = 95,215,766,659.01/355,324.49
  6. Step 6: Final answer
    x = 267,968.49

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1.5x scale

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.