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Finding the Fourth Proportional to 353,604.20, 487,984.26 and 192,469.72

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Solution

The fourth proportional to 353,604.20, 487,984.26 and 192,469.72 is: 265,613.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,604.20 : 487,984.26 = 192,469.72 : x
  2. Step 2: Convert to fraction form
    353,604.20/487,984.26 = 192,469.72/x
  3. Step 3: Cross multiply
    353,604.20x = 487,984.26 × 192,469.72
  4. Step 4: Simplify right side
    353,604.20x = 93,922,193,886.61
  5. Step 5: Solve for x
    x = 93,922,193,886.61/353,604.20
  6. Step 6: Final answer
    x = 265,613.91

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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.