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Finding the Third Proportional to 156,742 and 343,529

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Solution

The third proportional to 156,742 and 343,529 is: 752,907.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,742 : 343,529 = 343,529 : x
  2. Step 2: Convert to fraction form
    156,742/343,529 = 343,529/x
  3. Step 3: Cross multiply
    156,742x = 343,529 × 343,529
  4. Step 4: Simplify right side
    156,742x = 118,012,173,841
  5. Step 5: Solve for x
    x = 118,012,173,841/156,742
  6. Step 6: Final answer
    x = 752,907.16

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.