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Finding the Fourth Proportional to 198,658.56, 297,997.14 and 65,550.44

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Solution

The fourth proportional to 198,658.56, 297,997.14 and 65,550.44 is: 98,328.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,658.56 : 297,997.14 = 65,550.44 : x
  2. Step 2: Convert to fraction form
    198,658.56/297,997.14 = 65,550.44/x
  3. Step 3: Cross multiply
    198,658.56x = 297,997.14 × 65,550.44
  4. Step 4: Simplify right side
    198,658.56x = 19,533,843,645.74
  5. Step 5: Solve for x
    x = 19,533,843,645.74/198,658.56
  6. Step 6: Final answer
    x = 98,328.73

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1.5x scale

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.