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Finding the Third Proportional to 146,056 and 318,415

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Solution

The third proportional to 146,056 and 318,415 is: 694,172.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,056 : 318,415 = 318,415 : x
  2. Step 2: Convert to fraction form
    146,056/318,415 = 318,415/x
  3. Step 3: Cross multiply
    146,056x = 318,415 × 318,415
  4. Step 4: Simplify right side
    146,056x = 101,388,112,225
  5. Step 5: Solve for x
    x = 101,388,112,225/146,056
  6. Step 6: Final answer
    x = 694,172.87

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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.