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Finding the Third Proportional to 158,647 and 343,430

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Solution

The third proportional to 158,647 and 343,430 is: 743,437.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,647 : 343,430 = 343,430 : x
  2. Step 2: Convert to fraction form
    158,647/343,430 = 343,430/x
  3. Step 3: Cross multiply
    158,647x = 343,430 × 343,430
  4. Step 4: Simplify right side
    158,647x = 117,944,164,900
  5. Step 5: Solve for x
    x = 117,944,164,900/158,647
  6. Step 6: Final answer
    x = 743,437.73

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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.