Finding the Fourth Proportional to 378,211.44, 521,766.45 and 270,742.26
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Solution
The fourth proportional to 378,211.44, 521,766.45 and 270,742.26 is: 373,505.96
Step by Step Solution
- Step 1: Write the proportion equation
378,211.44 : 521,766.45 = 270,742.26 : x - Step 2: Convert to fraction form
378,211.44/521,766.45 = 270,742.26/x - Step 3: Cross multiply
378,211.44x = 521,766.45 × 270,742.26 - Step 4: Simplify right side
378,211.44x = 141,264,227,865.18 - Step 5: Solve for x
x = 141,264,227,865.18/378,211.44 - Step 6: Final answer
x = 373,505.96
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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.