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Finding the Fourth Proportional to 198,660.74, 298,027.76 and 65,550.20

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Solution

The fourth proportional to 198,660.74, 298,027.76 and 65,550.20 is: 98,337.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,660.74 : 298,027.76 = 65,550.20 : x
  2. Step 2: Convert to fraction form
    198,660.74/298,027.76 = 65,550.20/x
  3. Step 3: Cross multiply
    198,660.74x = 298,027.76 × 65,550.20
  4. Step 4: Simplify right side
    198,660.74x = 19,535,777,455.66
  5. Step 5: Solve for x
    x = 19,535,777,455.66/198,660.74
  6. Step 6: Final answer
    x = 98,337.39

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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.