Finding the Fourth Proportional to 300,183.84, 414,213.12 and 171,138.96
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Solution
The fourth proportional to 300,183.84, 414,213.12 and 171,138.96 is: 236,148.63
Step by Step Solution
- Step 1: Write the proportion equation
300,183.84 : 414,213.12 = 171,138.96 : x - Step 2: Convert to fraction form
300,183.84/414,213.12 = 171,138.96/x - Step 3: Cross multiply
300,183.84x = 414,213.12 × 171,138.96 - Step 4: Simplify right side
300,183.84x = 70,888,002,575.16 - Step 5: Solve for x
x = 70,888,002,575.16/300,183.84 - Step 6: Final answer
x = 236,148.63
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.