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Finding the Third Proportional to 55,215 and 118,617.75

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Solution

The third proportional to 55,215 and 118,617.75 is: 254,825.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,215 : 118,617.75 = 118,617.75 : x
  2. Step 2: Convert to fraction form
    55,215/118,617.75 = 118,617.75/x
  3. Step 3: Cross multiply
    55,215x = 118,617.75 × 118,617.75
  4. Step 4: Simplify right side
    55,215x = 14,070,170,615.06
  5. Step 5: Solve for x
    x = 14,070,170,615.06/55,215
  6. Step 6: Final answer
    x = 254,825.15

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.