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Finding the Third Proportional to 311,069 and 454,938

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Solution

The third proportional to 311,069 and 454,938 is: 665,346.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,069 : 454,938 = 454,938 : x
  2. Step 2: Convert to fraction form
    311,069/454,938 = 454,938/x
  3. Step 3: Cross multiply
    311,069x = 454,938 × 454,938
  4. Step 4: Simplify right side
    311,069x = 206,968,583,844
  5. Step 5: Solve for x
    x = 206,968,583,844/311,069
  6. Step 6: Final answer
    x = 665,346.22

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.