Finding the Fourth Proportional to 419,853.14, 629,760.57 and 135,556.81
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Solution
The fourth proportional to 419,853.14, 629,760.57 and 135,556.81 is: 203,329.03
Step by Step Solution
- Step 1: Write the proportion equation
419,853.14 : 629,760.57 = 135,556.81 : x - Step 2: Convert to fraction form
419,853.14/629,760.57 = 135,556.81/x - Step 3: Cross multiply
419,853.14x = 629,760.57 × 135,556.81 - Step 4: Simplify right side
419,853.14x = 85,368,332,612.75 - Step 5: Solve for x
x = 85,368,332,612.75/419,853.14 - Step 6: Final answer
x = 203,329.03
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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.