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Finding the Fourth Proportional to 355,049.84, 489,972.84 and 193,909.52

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Solution

The fourth proportional to 355,049.84, 489,972.84 and 193,909.52 is: 267,597.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,049.84 : 489,972.84 = 193,909.52 : x
  2. Step 2: Convert to fraction form
    355,049.84/489,972.84 = 193,909.52/x
  3. Step 3: Cross multiply
    355,049.84x = 489,972.84 × 193,909.52
  4. Step 4: Simplify right side
    355,049.84x = 95,010,398,217.44
  5. Step 5: Solve for x
    x = 95,010,398,217.44/355,049.84
  6. Step 6: Final answer
    x = 267,597.36

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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.