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Finding the Fourth Proportional to 199,620.60, 299,381.49 and 119,608.80

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Solution

The fourth proportional to 199,620.60, 299,381.49 and 119,608.80 is: 179,383.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,620.60 : 299,381.49 = 119,608.80 : x
  2. Step 2: Convert to fraction form
    199,620.60/299,381.49 = 119,608.80/x
  3. Step 3: Cross multiply
    199,620.60x = 299,381.49 × 119,608.80
  4. Step 4: Simplify right side
    199,620.60x = 35,808,660,761.11
  5. Step 5: Solve for x
    x = 35,808,660,761.11/199,620.60
  6. Step 6: Final answer
    x = 179,383.59

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.