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Finding the Third Proportional to 133,242 and 278,796

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Solution

The third proportional to 133,242 and 278,796 is: 583,353.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,242 : 278,796 = 278,796 : x
  2. Step 2: Convert to fraction form
    133,242/278,796 = 278,796/x
  3. Step 3: Cross multiply
    133,242x = 278,796 × 278,796
  4. Step 4: Simplify right side
    133,242x = 77,727,209,616
  5. Step 5: Solve for x
    x = 77,727,209,616/133,242
  6. Step 6: Final answer
    x = 583,353.67

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Why These Related Problems?

These problems maintain the same ratio (2.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.