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Finding the Third Proportional to 151,807 and 221,878

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Solution

The third proportional to 151,807 and 221,878 is: 324,292.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,807 : 221,878 = 221,878 : x
  2. Step 2: Convert to fraction form
    151,807/221,878 = 221,878/x
  3. Step 3: Cross multiply
    151,807x = 221,878 × 221,878
  4. Step 4: Simplify right side
    151,807x = 49,229,846,884
  5. Step 5: Solve for x
    x = 49,229,846,884/151,807
  6. Step 6: Final answer
    x = 324,292.34

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.