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Finding the Third Proportional to 190,764 and 407,608

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Solution

The third proportional to 190,764 and 407,608 is: 870,941.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,764 : 407,608 = 407,608 : x
  2. Step 2: Convert to fraction form
    190,764/407,608 = 407,608/x
  3. Step 3: Cross multiply
    190,764x = 407,608 × 407,608
  4. Step 4: Simplify right side
    190,764x = 166,144,281,664
  5. Step 5: Solve for x
    x = 166,144,281,664/190,764
  6. Step 6: Final answer
    x = 870,941.49

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.