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Finding the Fourth Proportional to 199,618.43, 275,469.05 and 108,970.92

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Solution

The fourth proportional to 199,618.43, 275,469.05 and 108,970.92 is: 150,377.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,618.43 : 275,469.05 = 108,970.92 : x
  2. Step 2: Convert to fraction form
    199,618.43/275,469.05 = 108,970.92/x
  3. Step 3: Cross multiply
    199,618.43x = 275,469.05 × 108,970.92
  4. Step 4: Simplify right side
    199,618.43x = 30,018,116,082.45
  5. Step 5: Solve for x
    x = 30,018,116,082.45/199,618.43
  6. Step 6: Final answer
    x = 150,377.48

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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.