Home / 215,442.96-322,879.32-165,331.56

Finding the Fourth Proportional to 215,442.96, 322,879.32 and 165,331.56

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Solution

The fourth proportional to 215,442.96, 322,879.32 and 165,331.56 is: 247,778.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,442.96 : 322,879.32 = 165,331.56 : x
  2. Step 2: Convert to fraction form
    215,442.96/322,879.32 = 165,331.56/x
  3. Step 3: Cross multiply
    215,442.96x = 322,879.32 × 165,331.56
  4. Step 4: Simplify right side
    215,442.96x = 53,382,141,667.34
  5. Step 5: Solve for x
    x = 53,382,141,667.34/215,442.96
  6. Step 6: Final answer
    x = 247,778.54

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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.