Finding the Fourth Proportional to 378,216.44, 521,773.36 and 270,747.28
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Solution
The fourth proportional to 378,216.44, 521,773.36 and 270,747.28 is: 373,512.90
Step by Step Solution
- Step 1: Write the proportion equation
378,216.44 : 521,773.36 = 270,747.28 : x - Step 2: Convert to fraction form
378,216.44/521,773.36 = 270,747.28/x - Step 3: Cross multiply
378,216.44x = 521,773.36 × 270,747.28 - Step 4: Simplify right side
378,216.44x = 141,268,717,996.46 - Step 5: Solve for x
x = 141,268,717,996.46/378,216.44 - Step 6: Final answer
x = 373,512.90
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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.