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Finding the Third Proportional to 145,964 and 219,991

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Solution

The third proportional to 145,964 and 219,991 is: 331,561.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,964 : 219,991 = 219,991 : x
  2. Step 2: Convert to fraction form
    145,964/219,991 = 219,991/x
  3. Step 3: Cross multiply
    145,964x = 219,991 × 219,991
  4. Step 4: Simplify right side
    145,964x = 48,396,040,081
  5. Step 5: Solve for x
    x = 48,396,040,081/145,964
  6. Step 6: Final answer
    x = 331,561.48

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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.