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Finding the Third Proportional to 71,242 and 153,783

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Solution

The third proportional to 71,242 and 153,783 is: 331,956.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,242 : 153,783 = 153,783 : x
  2. Step 2: Convert to fraction form
    71,242/153,783 = 153,783/x
  3. Step 3: Cross multiply
    71,242x = 153,783 × 153,783
  4. Step 4: Simplify right side
    71,242x = 23,649,211,089
  5. Step 5: Solve for x
    x = 23,649,211,089/71,242
  6. Step 6: Final answer
    x = 331,956.02

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.