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Finding the Fourth Proportional to 355,793.67, 490,993.52 and 194,645.79

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Solution

The fourth proportional to 355,793.67, 490,993.52 and 194,645.79 is: 268,610.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,793.67 : 490,993.52 = 194,645.79 : x
  2. Step 2: Convert to fraction form
    355,793.67/490,993.52 = 194,645.79/x
  3. Step 3: Cross multiply
    355,793.67x = 490,993.52 × 194,645.79
  4. Step 4: Simplify right side
    355,793.67x = 95,569,820,612.05
  5. Step 5: Solve for x
    x = 95,569,820,612.05/355,793.67
  6. Step 6: Final answer
    x = 268,610.23

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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.