Finding the Fourth Proportional to 318,117.62, 477,163.93 and 107,755.55
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Solution
The fourth proportional to 318,117.62, 477,163.93 and 107,755.55 is: 161,629.09
Step by Step Solution
- Step 1: Write the proportion equation
318,117.62 : 477,163.93 = 107,755.55 : x - Step 2: Convert to fraction form
318,117.62/477,163.93 = 107,755.55/x - Step 3: Cross multiply
318,117.62x = 477,163.93 × 107,755.55 - Step 4: Simplify right side
318,117.62x = 51,417,061,717.31 - Step 5: Solve for x
x = 51,417,061,717.31/318,117.62 - Step 6: Final answer
x = 161,629.09
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1.5x scale
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.