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Finding the Third Proportional to 136,288 and 296,576

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Solution

The third proportional to 136,288 and 296,576 is: 645,378.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,288 : 296,576 = 296,576 : x
  2. Step 2: Convert to fraction form
    136,288/296,576 = 296,576/x
  3. Step 3: Cross multiply
    136,288x = 296,576 × 296,576
  4. Step 4: Simplify right side
    136,288x = 87,957,323,776
  5. Step 5: Solve for x
    x = 87,957,323,776/136,288
  6. Step 6: Final answer
    x = 645,378.34

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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.