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Finding the Third Proportional to 158,764 and 218,705

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Solution

The third proportional to 158,764 and 218,705 is: 301,276.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,764 : 218,705 = 218,705 : x
  2. Step 2: Convert to fraction form
    158,764/218,705 = 218,705/x
  3. Step 3: Cross multiply
    158,764x = 218,705 × 218,705
  4. Step 4: Simplify right side
    158,764x = 47,831,877,025
  5. Step 5: Solve for x
    x = 47,831,877,025/158,764
  6. Step 6: Final answer
    x = 301,276.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.