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Finding the Third Proportional to 143,319 and 303,712

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Solution

The third proportional to 143,319 and 303,712 is: 643,606.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,319 : 303,712 = 303,712 : x
  2. Step 2: Convert to fraction form
    143,319/303,712 = 303,712/x
  3. Step 3: Cross multiply
    143,319x = 303,712 × 303,712
  4. Step 4: Simplify right side
    143,319x = 92,240,978,944
  5. Step 5: Solve for x
    x = 92,240,978,944/143,319
  6. Step 6: Final answer
    x = 643,606.07

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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.