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Finding the Third Proportional to 72,313 and 156,922

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Solution

The third proportional to 72,313 and 156,922 is: 340,526.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,313 : 156,922 = 156,922 : x
  2. Step 2: Convert to fraction form
    72,313/156,922 = 156,922/x
  3. Step 3: Cross multiply
    72,313x = 156,922 × 156,922
  4. Step 4: Simplify right side
    72,313x = 24,624,514,084
  5. Step 5: Solve for x
    x = 24,624,514,084/72,313
  6. Step 6: Final answer
    x = 340,526.79

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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.