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Finding the Fourth Proportional to 358,487.80, 494,719.45 and 195,149

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Solution

The fourth proportional to 358,487.80, 494,719.45 and 195,149 is: 269,309.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,487.80 : 494,719.45 = 195,149 : x
  2. Step 2: Convert to fraction form
    358,487.80/494,719.45 = 195,149/x
  3. Step 3: Cross multiply
    358,487.80x = 494,719.45 × 195,149
  4. Step 4: Simplify right side
    358,487.80x = 96,544,005,948.05
  5. Step 5: Solve for x
    x = 96,544,005,948.05/358,487.80
  6. Step 6: Final answer
    x = 269,309.04

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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.