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Finding the Fourth Proportional to 353,910.78, 488,380.04 and 192,765.06

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Solution

The fourth proportional to 353,910.78, 488,380.04 and 192,765.06 is: 266,006.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,910.78 : 488,380.04 = 192,765.06 : x
  2. Step 2: Convert to fraction form
    353,910.78/488,380.04 = 192,765.06/x
  3. Step 3: Cross multiply
    353,910.78x = 488,380.04 × 192,765.06
  4. Step 4: Simplify right side
    353,910.78x = 94,142,606,749.58
  5. Step 5: Solve for x
    x = 94,142,606,749.58/353,910.78
  6. Step 6: Final answer
    x = 266,006.61

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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.