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Finding the Fourth Proportional to 198,604.66, 297,876.75 and 65,479.54

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Solution

The fourth proportional to 198,604.66, 297,876.75 and 65,479.54 is: 98,209.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,604.66 : 297,876.75 = 65,479.54 : x
  2. Step 2: Convert to fraction form
    198,604.66/297,876.75 = 65,479.54/x
  3. Step 3: Cross multiply
    198,604.66x = 297,876.75 × 65,479.54
  4. Step 4: Simplify right side
    198,604.66x = 19,504,832,566.70
  5. Step 5: Solve for x
    x = 19,504,832,566.70/198,604.66
  6. Step 6: Final answer
    x = 98,209.34

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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.