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Finding the Third Proportional to 143,529 and 310,020

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Solution

The third proportional to 143,529 and 310,020 is: 669,637.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,529 : 310,020 = 310,020 : x
  2. Step 2: Convert to fraction form
    143,529/310,020 = 310,020/x
  3. Step 3: Cross multiply
    143,529x = 310,020 × 310,020
  4. Step 4: Simplify right side
    143,529x = 96,112,400,400
  5. Step 5: Solve for x
    x = 96,112,400,400/143,529
  6. Step 6: Final answer
    x = 669,637.50

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.