Home / 215,228.40-322,842.60-57,481.20

Finding the Fourth Proportional to 215,228.40, 322,842.60 and 57,481.20

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Solution

The fourth proportional to 215,228.40, 322,842.60 and 57,481.20 is: 86,221.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,228.40 : 322,842.60 = 57,481.20 : x
  2. Step 2: Convert to fraction form
    215,228.40/322,842.60 = 57,481.20/x
  3. Step 3: Cross multiply
    215,228.40x = 322,842.60 × 57,481.20
  4. Step 4: Simplify right side
    215,228.40x = 18,557,380,059.12
  5. Step 5: Solve for x
    x = 18,557,380,059.12/215,228.40
  6. Step 6: Final answer
    x = 86,221.80

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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.