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Finding the Third Proportional to 75,980 and 163,630

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Solution

The third proportional to 75,980 and 163,630 is: 352,392.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,980 : 163,630 = 163,630 : x
  2. Step 2: Convert to fraction form
    75,980/163,630 = 163,630/x
  3. Step 3: Cross multiply
    75,980x = 163,630 × 163,630
  4. Step 4: Simplify right side
    75,980x = 26,774,776,900
  5. Step 5: Solve for x
    x = 26,774,776,900/75,980
  6. Step 6: Final answer
    x = 352,392.43

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.