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Finding the Third Proportional to 143,015 and 310,633

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Solution

The third proportional to 143,015 and 310,633 is: 674,704.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,015 : 310,633 = 310,633 : x
  2. Step 2: Convert to fraction form
    143,015/310,633 = 310,633/x
  3. Step 3: Cross multiply
    143,015x = 310,633 × 310,633
  4. Step 4: Simplify right side
    143,015x = 96,492,860,689
  5. Step 5: Solve for x
    x = 96,492,860,689/143,015
  6. Step 6: Final answer
    x = 674,704.48

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.