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Finding the Third Proportional to 161,030 and 353,920

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Solution

The third proportional to 161,030 and 353,920 is: 777,863.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,030 : 353,920 = 353,920 : x
  2. Step 2: Convert to fraction form
    161,030/353,920 = 353,920/x
  3. Step 3: Cross multiply
    161,030x = 353,920 × 353,920
  4. Step 4: Simplify right side
    161,030x = 125,259,366,400
  5. Step 5: Solve for x
    x = 125,259,366,400/161,030
  6. Step 6: Final answer
    x = 777,863.54

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.