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Finding the Third Proportional to 163,810 and 350,390

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Solution

The third proportional to 163,810 and 350,390 is: 749,485.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,810 : 350,390 = 350,390 : x
  2. Step 2: Convert to fraction form
    163,810/350,390 = 350,390/x
  3. Step 3: Cross multiply
    163,810x = 350,390 × 350,390
  4. Step 4: Simplify right side
    163,810x = 122,773,152,100
  5. Step 5: Solve for x
    x = 122,773,152,100/163,810
  6. Step 6: Final answer
    x = 749,485.09

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.