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Finding the Third Proportional to 133,449 and 290,130

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Solution

The third proportional to 133,449 and 290,130 is: 630,768.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,449 : 290,130 = 290,130 : x
  2. Step 2: Convert to fraction form
    133,449/290,130 = 290,130/x
  3. Step 3: Cross multiply
    133,449x = 290,130 × 290,130
  4. Step 4: Simplify right side
    133,449x = 84,175,416,900
  5. Step 5: Solve for x
    x = 84,175,416,900/133,449
  6. Step 6: Final answer
    x = 630,768.44

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.