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Finding the Third Proportional to 145,274 and 222,135

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Solution

The third proportional to 145,274 and 222,135 is: 339,661.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,274 : 222,135 = 222,135 : x
  2. Step 2: Convert to fraction form
    145,274/222,135 = 222,135/x
  3. Step 3: Cross multiply
    145,274x = 222,135 × 222,135
  4. Step 4: Simplify right side
    145,274x = 49,343,958,225
  5. Step 5: Solve for x
    x = 49,343,958,225/145,274
  6. Step 6: Final answer
    x = 339,661.32

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.