Home / 218,415.81-327,623.33-68,669.16

Finding the Fourth Proportional to 218,415.81, 327,623.33 and 68,669.16

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Solution

The fourth proportional to 218,415.81, 327,623.33 and 68,669.16 is: 103,003.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,415.81 : 327,623.33 = 68,669.16 : x
  2. Step 2: Convert to fraction form
    218,415.81/327,623.33 = 68,669.16/x
  3. Step 3: Cross multiply
    218,415.81x = 327,623.33 × 68,669.16
  4. Step 4: Simplify right side
    218,415.81x = 22,497,618,524.16
  5. Step 5: Solve for x
    x = 22,497,618,524.16/218,415.81
  6. Step 6: Final answer
    x = 103,003.62

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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.