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Finding the Third Proportional to 156,940 and 340,088

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Solution

The third proportional to 156,940 and 340,088 is: 736,968.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,940 : 340,088 = 340,088 : x
  2. Step 2: Convert to fraction form
    156,940/340,088 = 340,088/x
  3. Step 3: Cross multiply
    156,940x = 340,088 × 340,088
  4. Step 4: Simplify right side
    156,940x = 115,659,847,744
  5. Step 5: Solve for x
    x = 115,659,847,744/156,940
  6. Step 6: Final answer
    x = 736,968.57

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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.