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Finding the Third Proportional to 156,916 and 340,040

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Solution

The third proportional to 156,916 and 340,040 is: 736,873.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,916 : 340,040 = 340,040 : x
  2. Step 2: Convert to fraction form
    156,916/340,040 = 340,040/x
  3. Step 3: Cross multiply
    156,916x = 340,040 × 340,040
  4. Step 4: Simplify right side
    156,916x = 115,627,201,600
  5. Step 5: Solve for x
    x = 115,627,201,600/156,916
  6. Step 6: Final answer
    x = 736,873.24

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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.