Finding the Fourth Proportional to 212,861.35, 293,791.23 and 122,279.44
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Solution
The fourth proportional to 212,861.35, 293,791.23 and 122,279.44 is: 168,770.08
Step by Step Solution
- Step 1: Write the proportion equation
212,861.35 : 293,791.23 = 122,279.44 : x - Step 2: Convert to fraction form
212,861.35/293,791.23 = 122,279.44/x - Step 3: Cross multiply
212,861.35x = 293,791.23 × 122,279.44 - Step 4: Simplify right side
212,861.35x = 35,924,627,081.31 - Step 5: Solve for x
x = 35,924,627,081.31/212,861.35 - Step 6: Final answer
x = 168,770.08
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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.