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Finding the Third Proportional to 132,295 and 290,928

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Solution

The third proportional to 132,295 and 290,928 is: 639,775.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,295 : 290,928 = 290,928 : x
  2. Step 2: Convert to fraction form
    132,295/290,928 = 290,928/x
  3. Step 3: Cross multiply
    132,295x = 290,928 × 290,928
  4. Step 4: Simplify right side
    132,295x = 84,639,101,184
  5. Step 5: Solve for x
    x = 84,639,101,184/132,295
  6. Step 6: Final answer
    x = 639,775.51

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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.