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Finding the Third Proportional to 163,881 and 247,320

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Solution

The third proportional to 163,881 and 247,320 is: 373,241.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,881 : 247,320 = 247,320 : x
  2. Step 2: Convert to fraction form
    163,881/247,320 = 247,320/x
  3. Step 3: Cross multiply
    163,881x = 247,320 × 247,320
  4. Step 4: Simplify right side
    163,881x = 61,167,182,400
  5. Step 5: Solve for x
    x = 61,167,182,400/163,881
  6. Step 6: Final answer
    x = 373,241.45

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.