Finding the Fourth Proportional to 263,455.80, 395,183.70 and 115,999.80
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Solution
The fourth proportional to 263,455.80, 395,183.70 and 115,999.80 is: 173,999.70
Step by Step Solution
- Step 1: Write the proportion equation
263,455.80 : 395,183.70 = 115,999.80 : x - Step 2: Convert to fraction form
263,455.80/395,183.70 = 115,999.80/x - Step 3: Cross multiply
263,455.80x = 395,183.70 × 115,999.80 - Step 4: Simplify right side
263,455.80x = 45,841,230,163.26 - Step 5: Solve for x
x = 45,841,230,163.26/263,455.80 - Step 6: Final answer
x = 173,999.70
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1.5x scale
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.