Finding the Fourth Proportional to 223,415.20, 335,122.80 and 73,678.60
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Solution
The fourth proportional to 223,415.20, 335,122.80 and 73,678.60 is: 110,517.90
Step by Step Solution
- Step 1: Write the proportion equation
223,415.20 : 335,122.80 = 73,678.60 : x - Step 2: Convert to fraction form
223,415.20/335,122.80 = 73,678.60/x - Step 3: Cross multiply
223,415.20x = 335,122.80 × 73,678.60 - Step 4: Simplify right side
223,415.20x = 24,691,378,732.08 - Step 5: Solve for x
x = 24,691,378,732.08/223,415.20 - Step 6: Final answer
x = 110,517.90
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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.