Finding the Fourth Proportional to 263,639.64, 395,526.87 and 76,651.14
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Solution
The fourth proportional to 263,639.64, 395,526.87 and 76,651.14 is: 114,996.31
Step by Step Solution
- Step 1: Write the proportion equation
263,639.64 : 395,526.87 = 76,651.14 : x - Step 2: Convert to fraction form
263,639.64/395,526.87 = 76,651.14/x - Step 3: Cross multiply
263,639.64x = 395,526.87 × 76,651.14 - Step 4: Simplify right side
263,639.64x = 30,317,585,486.13 - Step 5: Solve for x
x = 30,317,585,486.13/263,639.64 - Step 6: Final answer
x = 114,996.31
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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.