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Finding the Fourth Proportional to 229,998.56, 344,888.57 and 80,220.65

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Solution

The fourth proportional to 229,998.56, 344,888.57 and 80,220.65 is: 120,292.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,998.56 : 344,888.57 = 80,220.65 : x
  2. Step 2: Convert to fraction form
    229,998.56/344,888.57 = 80,220.65/x
  3. Step 3: Cross multiply
    229,998.56x = 344,888.57 × 80,220.65
  4. Step 4: Simplify right side
    229,998.56x = 27,667,183,739.08
  5. Step 5: Solve for x
    x = 27,667,183,739.08/229,998.56
  6. Step 6: Final answer
    x = 120,292.86

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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.