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Finding the Fourth Proportional to 353,886.75, 488,363.72 and 194,910.75

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Solution

The fourth proportional to 353,886.75, 488,363.72 and 194,910.75 is: 268,976.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,886.75 : 488,363.72 = 194,910.75 : x
  2. Step 2: Convert to fraction form
    353,886.75/488,363.72 = 194,910.75/x
  3. Step 3: Cross multiply
    353,886.75x = 488,363.72 × 194,910.75
  4. Step 4: Simplify right side
    353,886.75x = 95,187,337,963.44
  5. Step 5: Solve for x
    x = 95,187,337,963.44/353,886.75
  6. Step 6: Final answer
    x = 268,976.84

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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.