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Finding the Third Proportional to 143,296.75 and 303,661.50

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Solution

The third proportional to 143,296.75 and 303,661.50 is: 643,491.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,296.75 : 303,661.50 = 303,661.50 : x
  2. Step 2: Convert to fraction form
    143,296.75/303,661.50 = 303,661.50/x
  3. Step 3: Cross multiply
    143,296.75x = 303,661.50 × 303,661.50
  4. Step 4: Simplify right side
    143,296.75x = 92,210,306,582.25
  5. Step 5: Solve for x
    x = 92,210,306,582.25/143,296.75
  6. Step 6: Final answer
    x = 643,491.96

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.