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Finding the Third Proportional to 70,425 and 145,512

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Solution

The third proportional to 70,425 and 145,512 is: 300,656.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,425 : 145,512 = 145,512 : x
  2. Step 2: Convert to fraction form
    70,425/145,512 = 145,512/x
  3. Step 3: Cross multiply
    70,425x = 145,512 × 145,512
  4. Step 4: Simplify right side
    70,425x = 21,173,742,144
  5. Step 5: Solve for x
    x = 21,173,742,144/70,425
  6. Step 6: Final answer
    x = 300,656.62

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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.