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Finding the Third Proportional to 143,206 and 313,955

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Solution

The third proportional to 143,206 and 313,955 is: 688,293.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,206 : 313,955 = 313,955 : x
  2. Step 2: Convert to fraction form
    143,206/313,955 = 313,955/x
  3. Step 3: Cross multiply
    143,206x = 313,955 × 313,955
  4. Step 4: Simplify right side
    143,206x = 98,567,742,025
  5. Step 5: Solve for x
    x = 98,567,742,025/143,206
  6. Step 6: Final answer
    x = 688,293.38

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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.