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Finding the Third Proportional to 66,490.88 and 134,480.25

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Solution

The third proportional to 66,490.88 and 134,480.25 is: 271,991.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,490.88 : 134,480.25 = 134,480.25 : x
  2. Step 2: Convert to fraction form
    66,490.88/134,480.25 = 134,480.25/x
  3. Step 3: Cross multiply
    66,490.88x = 134,480.25 × 134,480.25
  4. Step 4: Simplify right side
    66,490.88x = 18,084,937,640.06
  5. Step 5: Solve for x
    x = 18,084,937,640.06/66,490.88
  6. Step 6: Final answer
    x = 271,991.27

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Why These Related Problems?

These problems maintain the same ratio (2.02) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.