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Finding the Fourth Proportional to 353,859.60, 488,321.28 and 200,896.56

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Solution

The fourth proportional to 353,859.60, 488,321.28 and 200,896.56 is: 277,234.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,859.60 : 488,321.28 = 200,896.56 : x
  2. Step 2: Convert to fraction form
    353,859.60/488,321.28 = 200,896.56/x
  3. Step 3: Cross multiply
    353,859.60x = 488,321.28 × 200,896.56
  4. Step 4: Simplify right side
    353,859.60x = 98,102,065,326.80
  5. Step 5: Solve for x
    x = 98,102,065,326.80/353,859.60
  6. Step 6: Final answer
    x = 277,234.43

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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.