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Finding the Third Proportional to 299,431 and 450,361.50

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Solution

The third proportional to 299,431 and 450,361.50 is: 677,369.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,431 : 450,361.50 = 450,361.50 : x
  2. Step 2: Convert to fraction form
    299,431/450,361.50 = 450,361.50/x
  3. Step 3: Cross multiply
    299,431x = 450,361.50 × 450,361.50
  4. Step 4: Simplify right side
    299,431x = 202,825,480,682.25
  5. Step 5: Solve for x
    x = 202,825,480,682.25/299,431
  6. Step 6: Final answer
    x = 677,369.68

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.