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Finding the Third Proportional to 156,974 and 340,018

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Solution

The third proportional to 156,974 and 340,018 is: 736,505.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,974 : 340,018 = 340,018 : x
  2. Step 2: Convert to fraction form
    156,974/340,018 = 340,018/x
  3. Step 3: Cross multiply
    156,974x = 340,018 × 340,018
  4. Step 4: Simplify right side
    156,974x = 115,612,240,324
  5. Step 5: Solve for x
    x = 115,612,240,324/156,974
  6. Step 6: Final answer
    x = 736,505.67

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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.