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Finding the Fourth Proportional to 199,800.33, 299,700.48 and 81,480.87

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Solution

The fourth proportional to 199,800.33, 299,700.48 and 81,480.87 is: 122,221.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,800.33 : 299,700.48 = 81,480.87 : x
  2. Step 2: Convert to fraction form
    199,800.33/299,700.48 = 81,480.87/x
  3. Step 3: Cross multiply
    199,800.33x = 299,700.48 × 81,480.87
  4. Step 4: Simplify right side
    199,800.33x = 24,419,855,849.82
  5. Step 5: Solve for x
    x = 24,419,855,849.82/199,800.33
  6. Step 6: Final answer
    x = 122,221.30

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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.