Home / 215,078.90-322,374.94-108,293.15

Finding the Fourth Proportional to 215,078.90, 322,374.94 and 108,293.15

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Solution

The fourth proportional to 215,078.90, 322,374.94 and 108,293.15 is: 162,317.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,078.90 : 322,374.94 = 108,293.15 : x
  2. Step 2: Convert to fraction form
    215,078.90/322,374.94 = 108,293.15/x
  3. Step 3: Cross multiply
    215,078.90x = 322,374.94 × 108,293.15
  4. Step 4: Simplify right side
    215,078.90x = 34,910,998,268.87
  5. Step 5: Solve for x
    x = 34,910,998,268.87/215,078.90
  6. Step 6: Final answer
    x = 162,317.17

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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.