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Finding the Fourth Proportional to 451,679.35, 677,781.48 and 202,361.35

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Solution

The fourth proportional to 451,679.35, 677,781.48 and 202,361.35 is: 303,659.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,679.35 : 677,781.48 = 202,361.35 : x
  2. Step 2: Convert to fraction form
    451,679.35/677,781.48 = 202,361.35/x
  3. Step 3: Cross multiply
    451,679.35x = 677,781.48 × 202,361.35
  4. Step 4: Simplify right side
    451,679.35x = 137,156,775,297.80
  5. Step 5: Solve for x
    x = 137,156,775,297.80/451,679.35
  6. Step 6: Final answer
    x = 303,659.61

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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.