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Finding the Third Proportional to 308,512.13 and 672,381

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Solution

The third proportional to 308,512.13 and 672,381 is: 1,465,408.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,512.13 : 672,381 = 672,381 : x
  2. Step 2: Convert to fraction form
    308,512.13/672,381 = 672,381/x
  3. Step 3: Cross multiply
    308,512.13x = 672,381 × 672,381
  4. Step 4: Simplify right side
    308,512.13x = 452,096,209,161
  5. Step 5: Solve for x
    x = 452,096,209,161/308,512.13
  6. Step 6: Final answer
    x = 1,465,408.24

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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.