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Finding the Third Proportional to 179,958.50 and 393,816

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Solution

The third proportional to 179,958.50 and 393,816 is: 861,815.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,958.50 : 393,816 = 393,816 : x
  2. Step 2: Convert to fraction form
    179,958.50/393,816 = 393,816/x
  3. Step 3: Cross multiply
    179,958.50x = 393,816 × 393,816
  4. Step 4: Simplify right side
    179,958.50x = 155,091,041,856
  5. Step 5: Solve for x
    x = 155,091,041,856/179,958.50
  6. Step 6: Final answer
    x = 861,815.60

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.