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Finding the Third Proportional to 145,811 and 225,170

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Solution

The third proportional to 145,811 and 225,170 is: 347,720.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,811 : 225,170 = 225,170 : x
  2. Step 2: Convert to fraction form
    145,811/225,170 = 225,170/x
  3. Step 3: Cross multiply
    145,811x = 225,170 × 225,170
  4. Step 4: Simplify right side
    145,811x = 50,701,528,900
  5. Step 5: Solve for x
    x = 50,701,528,900/145,811
  6. Step 6: Final answer
    x = 347,720.88

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.