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Finding the Fourth Proportional to 397,268.81, 548,241.77 and 215,992.93

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Solution

The fourth proportional to 397,268.81, 548,241.77 and 215,992.93 is: 298,076.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,268.81 : 548,241.77 = 215,992.93 : x
  2. Step 2: Convert to fraction form
    397,268.81/548,241.77 = 215,992.93/x
  3. Step 3: Cross multiply
    397,268.81x = 548,241.77 × 215,992.93
  4. Step 4: Simplify right side
    397,268.81x = 118,416,346,250.69
  5. Step 5: Solve for x
    x = 118,416,346,250.69/397,268.81
  6. Step 6: Final answer
    x = 298,076.12

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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.