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Finding the Third Proportional to 312,245.50 and 649,033.75

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Solution

The third proportional to 312,245.50 and 649,033.75 is: 1,349,082.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,245.50 : 649,033.75 = 649,033.75 : x
  2. Step 2: Convert to fraction form
    312,245.50/649,033.75 = 649,033.75/x
  3. Step 3: Cross multiply
    312,245.50x = 649,033.75 × 649,033.75
  4. Step 4: Simplify right side
    312,245.50x = 421,244,808,639.06
  5. Step 5: Solve for x
    x = 421,244,808,639.06/312,245.50
  6. Step 6: Final answer
    x = 1,349,082.08

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.