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Finding the Third Proportional to 100,869 and 148,383

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Solution

The third proportional to 100,869 and 148,383 is: 218,278.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,869 : 148,383 = 148,383 : x
  2. Step 2: Convert to fraction form
    100,869/148,383 = 148,383/x
  3. Step 3: Cross multiply
    100,869x = 148,383 × 148,383
  4. Step 4: Simplify right side
    100,869x = 22,017,514,689
  5. Step 5: Solve for x
    x = 22,017,514,689/100,869
  6. Step 6: Final answer
    x = 218,278.31

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.