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Finding the Fourth Proportional to 199,034.80, 298,552.20 and 65,919.40

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Solution

The fourth proportional to 199,034.80, 298,552.20 and 65,919.40 is: 98,879.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,034.80 : 298,552.20 = 65,919.40 : x
  2. Step 2: Convert to fraction form
    199,034.80/298,552.20 = 65,919.40/x
  3. Step 3: Cross multiply
    199,034.80x = 298,552.20 × 65,919.40
  4. Step 4: Simplify right side
    199,034.80x = 19,680,381,892.68
  5. Step 5: Solve for x
    x = 19,680,381,892.68/199,034.80
  6. Step 6: Final answer
    x = 98,879.10

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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.