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Finding the Third Proportional to 71,425 and 148,762

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Solution

The third proportional to 71,425 and 148,762 is: 309,837.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,425 : 148,762 = 148,762 : x
  2. Step 2: Convert to fraction form
    71,425/148,762 = 148,762/x
  3. Step 3: Cross multiply
    71,425x = 148,762 × 148,762
  4. Step 4: Simplify right side
    71,425x = 22,130,132,644
  5. Step 5: Solve for x
    x = 22,130,132,644/71,425
  6. Step 6: Final answer
    x = 309,837.35

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.