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Finding the Third Proportional to 132,608 and 288,520

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Solution

The third proportional to 132,608 and 288,520 is: 627,743.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,608 : 288,520 = 288,520 : x
  2. Step 2: Convert to fraction form
    132,608/288,520 = 288,520/x
  3. Step 3: Cross multiply
    132,608x = 288,520 × 288,520
  4. Step 4: Simplify right side
    132,608x = 83,243,790,400
  5. Step 5: Solve for x
    x = 83,243,790,400/132,608
  6. Step 6: Final answer
    x = 627,743.35

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.