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Finding the Third Proportional to 132,192 and 290,628

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Solution

The third proportional to 132,192 and 290,628 is: 638,954.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,192 : 290,628 = 290,628 : x
  2. Step 2: Convert to fraction form
    132,192/290,628 = 290,628/x
  3. Step 3: Cross multiply
    132,192x = 290,628 × 290,628
  4. Step 4: Simplify right side
    132,192x = 84,464,634,384
  5. Step 5: Solve for x
    x = 84,464,634,384/132,192
  6. Step 6: Final answer
    x = 638,954.21

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.