Finding the Fourth Proportional to 193,453.14, 290,067.96 and 74,986.08
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Solution
The fourth proportional to 193,453.14, 290,067.96 and 74,986.08 is: 112,435.81
Step by Step Solution
- Step 1: Write the proportion equation
193,453.14 : 290,067.96 = 74,986.08 : x - Step 2: Convert to fraction form
193,453.14/290,067.96 = 74,986.08/x - Step 3: Cross multiply
193,453.14x = 290,067.96 × 74,986.08 - Step 4: Simplify right side
193,453.14x = 21,751,059,052.36 - Step 5: Solve for x
x = 21,751,059,052.36/193,453.14 - Step 6: Final answer
x = 112,435.81
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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.