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Finding the Fourth Proportional to 355,169.28, 490,148.22 and 204,266.28

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Solution

The fourth proportional to 355,169.28, 490,148.22 and 204,266.28 is: 281,895.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,169.28 : 490,148.22 = 204,266.28 : x
  2. Step 2: Convert to fraction form
    355,169.28/490,148.22 = 204,266.28/x
  3. Step 3: Cross multiply
    355,169.28x = 490,148.22 × 204,266.28
  4. Step 4: Simplify right side
    355,169.28x = 100,120,753,548.02
  5. Step 5: Solve for x
    x = 100,120,753,548.02/355,169.28
  6. Step 6: Final answer
    x = 281,895.87

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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.