Home / 215,340.89-322,986.68-57,581.65

Finding the Fourth Proportional to 215,340.89, 322,986.68 and 57,581.65

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Solution

The fourth proportional to 215,340.89, 322,986.68 and 57,581.65 is: 86,365.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,340.89 : 322,986.68 = 57,581.65 : x
  2. Step 2: Convert to fraction form
    215,340.89/322,986.68 = 57,581.65/x
  3. Step 3: Cross multiply
    215,340.89x = 322,986.68 × 57,581.65
  4. Step 4: Simplify right side
    215,340.89x = 18,598,104,801.28
  5. Step 5: Solve for x
    x = 18,598,104,801.28/215,340.89
  6. Step 6: Final answer
    x = 86,365.88

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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.