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Finding the Third Proportional to 165,786 and 354,840

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Solution

The third proportional to 165,786 and 354,840 is: 759,481.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,786 : 354,840 = 354,840 : x
  2. Step 2: Convert to fraction form
    165,786/354,840 = 354,840/x
  3. Step 3: Cross multiply
    165,786x = 354,840 × 354,840
  4. Step 4: Simplify right side
    165,786x = 125,911,425,600
  5. Step 5: Solve for x
    x = 125,911,425,600/165,786
  6. Step 6: Final answer
    x = 759,481.65

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.