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Finding the Fourth Proportional to 199,604.20, 299,406.30 and 179,921.20

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Solution

The fourth proportional to 199,604.20, 299,406.30 and 179,921.20 is: 269,881.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,604.20 : 299,406.30 = 179,921.20 : x
  2. Step 2: Convert to fraction form
    199,604.20/299,406.30 = 179,921.20/x
  3. Step 3: Cross multiply
    199,604.20x = 299,406.30 × 179,921.20
  4. Step 4: Simplify right side
    199,604.20x = 53,869,540,783.56
  5. Step 5: Solve for x
    x = 53,869,540,783.56/199,604.20
  6. Step 6: Final answer
    x = 269,881.80

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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.