Home / 270,333.09-405,561.24-143,906.73

Finding the Fourth Proportional to 270,333.09, 405,561.24 and 143,906.73

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Solution

The fourth proportional to 270,333.09, 405,561.24 and 143,906.73 is: 215,892.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,333.09 : 405,561.24 = 143,906.73 : x
  2. Step 2: Convert to fraction form
    270,333.09/405,561.24 = 143,906.73/x
  3. Step 3: Cross multiply
    270,333.09x = 405,561.24 × 143,906.73
  4. Step 4: Simplify right side
    270,333.09x = 58,362,991,863.15
  5. Step 5: Solve for x
    x = 58,362,991,863.15/270,333.09
  6. Step 6: Final answer
    x = 215,892.89

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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.