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Finding the Third Proportional to 158,771 and 216,220

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Solution

The third proportional to 158,771 and 216,220 is: 294,456.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,771 : 216,220 = 216,220 : x
  2. Step 2: Convert to fraction form
    158,771/216,220 = 216,220/x
  3. Step 3: Cross multiply
    158,771x = 216,220 × 216,220
  4. Step 4: Simplify right side
    158,771x = 46,751,088,400
  5. Step 5: Solve for x
    x = 46,751,088,400/158,771
  6. Step 6: Final answer
    x = 294,456.09

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.