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Finding the Third Proportional to 170,913 and 372,579

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Solution

The third proportional to 170,913 and 372,579 is: 812,197.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,913 : 372,579 = 372,579 : x
  2. Step 2: Convert to fraction form
    170,913/372,579 = 372,579/x
  3. Step 3: Cross multiply
    170,913x = 372,579 × 372,579
  4. Step 4: Simplify right side
    170,913x = 138,815,111,241
  5. Step 5: Solve for x
    x = 138,815,111,241/170,913
  6. Step 6: Final answer
    x = 812,197.50

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.