Finding the Fourth Proportional to 201,138.40, 301,270.20 and 122,114.80
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Solution
The fourth proportional to 201,138.40, 301,270.20 and 122,114.80 is: 182,906.65
Step by Step Solution
- Step 1: Write the proportion equation
201,138.40 : 301,270.20 = 122,114.80 : x - Step 2: Convert to fraction form
201,138.40/301,270.20 = 122,114.80/x - Step 3: Cross multiply
201,138.40x = 301,270.20 × 122,114.80 - Step 4: Simplify right side
201,138.40x = 36,789,550,218.96 - Step 5: Solve for x
x = 36,789,550,218.96/201,138.40 - Step 6: Final answer
x = 182,906.65
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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.