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Finding the Third Proportional to 121,203 and 173,502

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Solution

The third proportional to 121,203 and 173,502 is: 248,367.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,203 : 173,502 = 173,502 : x
  2. Step 2: Convert to fraction form
    121,203/173,502 = 173,502/x
  3. Step 3: Cross multiply
    121,203x = 173,502 × 173,502
  4. Step 4: Simplify right side
    121,203x = 30,102,944,004
  5. Step 5: Solve for x
    x = 30,102,944,004/121,203
  6. Step 6: Final answer
    x = 248,367.98

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.