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Finding the Fourth Proportional to 179,568, 269,390.88 and 68,760

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Solution

The fourth proportional to 179,568, 269,390.88 and 68,760 is: 103,154.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,568 : 269,390.88 = 68,760 : x
  2. Step 2: Convert to fraction form
    179,568/269,390.88 = 68,760/x
  3. Step 3: Cross multiply
    179,568x = 269,390.88 × 68,760
  4. Step 4: Simplify right side
    179,568x = 18,523,316,908.80
  5. Step 5: Solve for x
    x = 18,523,316,908.80/179,568
  6. Step 6: Final answer
    x = 103,154.89

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.