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Finding the Fourth Proportional to 357,992.81, 494,042.79 and 196,860.12

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Solution

The fourth proportional to 357,992.81, 494,042.79 and 196,860.12 is: 271,673.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,992.81 : 494,042.79 = 196,860.12 : x
  2. Step 2: Convert to fraction form
    357,992.81/494,042.79 = 196,860.12/x
  3. Step 3: Cross multiply
    357,992.81x = 494,042.79 × 196,860.12
  4. Step 4: Simplify right side
    357,992.81x = 97,257,324,589.09
  5. Step 5: Solve for x
    x = 97,257,324,589.09/357,992.81
  6. Step 6: Final answer
    x = 271,673.96

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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.