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Finding the Fourth Proportional to 352,899.86, 486,993.25 and 197,840.87

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Solution

The fourth proportional to 352,899.86, 486,993.25 and 197,840.87 is: 273,015.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,899.86 : 486,993.25 = 197,840.87 : x
  2. Step 2: Convert to fraction form
    352,899.86/486,993.25 = 197,840.87/x
  3. Step 3: Cross multiply
    352,899.86x = 486,993.25 × 197,840.87
  4. Step 4: Simplify right side
    352,899.86x = 96,347,170,021.39
  5. Step 5: Solve for x
    x = 96,347,170,021.39/352,899.86
  6. Step 6: Final answer
    x = 273,015.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.