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Finding the Third Proportional to 228,609 and 356,003

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Solution

The third proportional to 228,609 and 356,003 is: 554,388.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,609 : 356,003 = 356,003 : x
  2. Step 2: Convert to fraction form
    228,609/356,003 = 356,003/x
  3. Step 3: Cross multiply
    228,609x = 356,003 × 356,003
  4. Step 4: Simplify right side
    228,609x = 126,738,136,009
  5. Step 5: Solve for x
    x = 126,738,136,009/228,609
  6. Step 6: Final answer
    x = 554,388.22

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.