Finding the Fourth Proportional to 252,007.75, 347,770.70 and 138,832.93
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Solution
The fourth proportional to 252,007.75, 347,770.70 and 138,832.93 is: 191,589.45
Step by Step Solution
- Step 1: Write the proportion equation
252,007.75 : 347,770.70 = 138,832.93 : x - Step 2: Convert to fraction form
252,007.75/347,770.70 = 138,832.93/x - Step 3: Cross multiply
252,007.75x = 347,770.70 × 138,832.93 - Step 4: Simplify right side
252,007.75x = 48,282,025,249.15 - Step 5: Solve for x
x = 48,282,025,249.15/252,007.75 - Step 6: Final answer
x = 191,589.45
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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.