Home / 218,318.82-327,628.62-76,164.90

Finding the Fourth Proportional to 218,318.82, 327,628.62 and 76,164.90

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Solution

The fourth proportional to 218,318.82, 327,628.62 and 76,164.90 is: 114,299.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,318.82 : 327,628.62 = 76,164.90 : x
  2. Step 2: Convert to fraction form
    218,318.82/327,628.62 = 76,164.90/x
  3. Step 3: Cross multiply
    218,318.82x = 327,628.62 × 76,164.90
  4. Step 4: Simplify right side
    218,318.82x = 24,953,801,079.44
  5. Step 5: Solve for x
    x = 24,953,801,079.44/218,318.82
  6. Step 6: Final answer
    x = 114,299.82

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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.