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Finding the Fourth Proportional to 351,772.70, 485,448.27 and 190,627.88

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Solution

The fourth proportional to 351,772.70, 485,448.27 and 190,627.88 is: 263,067.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,772.70 : 485,448.27 = 190,627.88 : x
  2. Step 2: Convert to fraction form
    351,772.70/485,448.27 = 190,627.88/x
  3. Step 3: Cross multiply
    351,772.70x = 485,448.27 × 190,627.88
  4. Step 4: Simplify right side
    351,772.70x = 92,539,974,559.77
  5. Step 5: Solve for x
    x = 92,539,974,559.77/351,772.70
  6. Step 6: Final answer
    x = 263,067.53

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.