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Finding the Third Proportional to 55,640 and 115,168

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Solution

The third proportional to 55,640 and 115,168 is: 238,383.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,640 : 115,168 = 115,168 : x
  2. Step 2: Convert to fraction form
    55,640/115,168 = 115,168/x
  3. Step 3: Cross multiply
    55,640x = 115,168 × 115,168
  4. Step 4: Simplify right side
    55,640x = 13,263,668,224
  5. Step 5: Solve for x
    x = 13,263,668,224/55,640
  6. Step 6: Final answer
    x = 238,383.68

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Why These Related Problems?

These problems maintain the same ratio (2.07) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.