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Finding the Fourth Proportional to 199,641.78, 275,504.87 and 108,996.71

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Solution

The fourth proportional to 199,641.78, 275,504.87 and 108,996.71 is: 150,415.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,641.78 : 275,504.87 = 108,996.71 : x
  2. Step 2: Convert to fraction form
    199,641.78/275,504.87 = 108,996.71/x
  3. Step 3: Cross multiply
    199,641.78x = 275,504.87 × 108,996.71
  4. Step 4: Simplify right side
    199,641.78x = 30,029,123,313.95
  5. Step 5: Solve for x
    x = 30,029,123,313.95/199,641.78
  6. Step 6: Final answer
    x = 150,415.02

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1.5x scale

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.