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Finding the Third Proportional to 143,807 and 313,571

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Solution

The third proportional to 143,807 and 313,571 is: 683,741.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,807 : 313,571 = 313,571 : x
  2. Step 2: Convert to fraction form
    143,807/313,571 = 313,571/x
  3. Step 3: Cross multiply
    143,807x = 313,571 × 313,571
  4. Step 4: Simplify right side
    143,807x = 98,326,772,041
  5. Step 5: Solve for x
    x = 98,326,772,041/143,807
  6. Step 6: Final answer
    x = 683,741.21

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.