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Finding the Fourth Proportional to 354,678.73, 489,468.44 and 193,542.62

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Solution

The fourth proportional to 354,678.73, 489,468.44 and 193,542.62 is: 267,095.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,678.73 : 489,468.44 = 193,542.62 : x
  2. Step 2: Convert to fraction form
    354,678.73/489,468.44 = 193,542.62/x
  3. Step 3: Cross multiply
    354,678.73x = 489,468.44 × 193,542.62
  4. Step 4: Simplify right side
    354,678.73x = 94,733,002,321.43
  5. Step 5: Solve for x
    x = 94,733,002,321.43/354,678.73
  6. Step 6: Final answer
    x = 267,095.25

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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.