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Finding the Third Proportional to 195,900 and 290,970

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Solution

The third proportional to 195,900 and 290,970 is: 432,177.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    195,900 : 290,970 = 290,970 : x
  2. Step 2: Convert to fraction form
    195,900/290,970 = 290,970/x
  3. Step 3: Cross multiply
    195,900x = 290,970 × 290,970
  4. Step 4: Simplify right side
    195,900x = 84,663,540,900
  5. Step 5: Solve for x
    x = 84,663,540,900/195,900
  6. Step 6: Final answer
    x = 432,177.34

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.