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Finding the Third Proportional to 140,838 and 305,964

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Solution

The third proportional to 140,838 and 305,964 is: 664,692.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,838 : 305,964 = 305,964 : x
  2. Step 2: Convert to fraction form
    140,838/305,964 = 305,964/x
  3. Step 3: Cross multiply
    140,838x = 305,964 × 305,964
  4. Step 4: Simplify right side
    140,838x = 93,613,969,296
  5. Step 5: Solve for x
    x = 93,613,969,296/140,838
  6. Step 6: Final answer
    x = 664,692.55

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.