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Finding the Third Proportional to 64,236 and 138,314

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Solution

The third proportional to 64,236 and 138,314 is: 297,819.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,236 : 138,314 = 138,314 : x
  2. Step 2: Convert to fraction form
    64,236/138,314 = 138,314/x
  3. Step 3: Cross multiply
    64,236x = 138,314 × 138,314
  4. Step 4: Simplify right side
    64,236x = 19,130,762,596
  5. Step 5: Solve for x
    x = 19,130,762,596/64,236
  6. Step 6: Final answer
    x = 297,819.95

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.