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Finding the Third Proportional to 146,259 and 316,505

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Solution

The third proportional to 146,259 and 316,505 is: 684,917.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,259 : 316,505 = 316,505 : x
  2. Step 2: Convert to fraction form
    146,259/316,505 = 316,505/x
  3. Step 3: Cross multiply
    146,259x = 316,505 × 316,505
  4. Step 4: Simplify right side
    146,259x = 100,175,415,025
  5. Step 5: Solve for x
    x = 100,175,415,025/146,259
  6. Step 6: Final answer
    x = 684,917.95

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.