Finding the Fourth Proportional to 263,633.12, 395,517.12 and 76,644.62
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Solution
The fourth proportional to 263,633.12, 395,517.12 and 76,644.62 is: 114,986.54
Step by Step Solution
- Step 1: Write the proportion equation
263,633.12 : 395,517.12 = 76,644.62 : x - Step 2: Convert to fraction form
263,633.12/395,517.12 = 76,644.62/x - Step 3: Cross multiply
263,633.12x = 395,517.12 × 76,644.62 - Step 4: Simplify right side
263,633.12x = 30,314,259,365.89 - Step 5: Solve for x
x = 30,314,259,365.89/263,633.12 - Step 6: Final answer
x = 114,986.54
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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.