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Finding the Third Proportional to 197,246 and 320,460

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Solution

The third proportional to 197,246 and 320,460 is: 520,642.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,246 : 320,460 = 320,460 : x
  2. Step 2: Convert to fraction form
    197,246/320,460 = 320,460/x
  3. Step 3: Cross multiply
    197,246x = 320,460 × 320,460
  4. Step 4: Simplify right side
    197,246x = 102,694,611,600
  5. Step 5: Solve for x
    x = 102,694,611,600/197,246
  6. Step 6: Final answer
    x = 520,642.30

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Why These Related Problems?

These problems maintain the same ratio (1.62) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.