Home / 217,629.56-300,338.16-120,833.41

Finding the Fourth Proportional to 217,629.56, 300,338.16 and 120,833.41

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Solution

The fourth proportional to 217,629.56, 300,338.16 and 120,833.41 is: 166,755.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,629.56 : 300,338.16 = 120,833.41 : x
  2. Step 2: Convert to fraction form
    217,629.56/300,338.16 = 120,833.41/x
  3. Step 3: Cross multiply
    217,629.56x = 300,338.16 × 120,833.41
  4. Step 4: Simplify right side
    217,629.56x = 36,290,884,025.93
  5. Step 5: Solve for x
    x = 36,290,884,025.93/217,629.56
  6. Step 6: Final answer
    x = 166,755.31

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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.