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Finding the Fourth Proportional to 263,149.89, 363,146.59 and 142,290.89

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Solution

The fourth proportional to 263,149.89, 363,146.59 and 142,290.89 is: 196,361.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,149.89 : 363,146.59 = 142,290.89 : x
  2. Step 2: Convert to fraction form
    263,149.89/363,146.59 = 142,290.89/x
  3. Step 3: Cross multiply
    263,149.89x = 363,146.59 × 142,290.89
  4. Step 4: Simplify right side
    263,149.89x = 51,672,451,491.57
  5. Step 5: Solve for x
    x = 51,672,451,491.57/263,149.89
  6. Step 6: Final answer
    x = 196,361.29

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1.5x scale

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.