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Finding the Fourth Proportional to 298,456.75, 412,220.24 and 197,679.79

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Solution

The fourth proportional to 298,456.75, 412,220.24 and 197,679.79 is: 273,029.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,456.75 : 412,220.24 = 197,679.79 : x
  2. Step 2: Convert to fraction form
    298,456.75/412,220.24 = 197,679.79/x
  3. Step 3: Cross multiply
    298,456.75x = 412,220.24 × 197,679.79
  4. Step 4: Simplify right side
    298,456.75x = 81,487,609,488.55
  5. Step 5: Solve for x
    x = 81,487,609,488.55/298,456.75
  6. Step 6: Final answer
    x = 273,029.88

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1.5x scale

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.