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Finding the Fourth Proportional to 355,682.54, 490,812.20 and 200,625.26

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Solution

The fourth proportional to 355,682.54, 490,812.20 and 200,625.26 is: 276,846.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,682.54 : 490,812.20 = 200,625.26 : x
  2. Step 2: Convert to fraction form
    355,682.54/490,812.20 = 200,625.26/x
  3. Step 3: Cross multiply
    355,682.54x = 490,812.20 × 200,625.26
  4. Step 4: Simplify right side
    355,682.54x = 98,469,321,778.98
  5. Step 5: Solve for x
    x = 98,469,321,778.98/355,682.54
  6. Step 6: Final answer
    x = 276,846.10

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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.