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Finding the Fourth Proportional to 358,485.80, 494,716.69 and 195,147

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Solution

The fourth proportional to 358,485.80, 494,716.69 and 195,147 is: 269,306.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,485.80 : 494,716.69 = 195,147 : x
  2. Step 2: Convert to fraction form
    358,485.80/494,716.69 = 195,147/x
  3. Step 3: Cross multiply
    358,485.80x = 494,716.69 × 195,147
  4. Step 4: Simplify right side
    358,485.80x = 96,542,477,903.43
  5. Step 5: Solve for x
    x = 96,542,477,903.43/358,485.80
  6. Step 6: Final answer
    x = 269,306.29

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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.