Finding the Fourth Proportional to 378,208.44, 521,762.31 and 270,739.26
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Solution
The fourth proportional to 378,208.44, 521,762.31 and 270,739.26 is: 373,501.82
Step by Step Solution
- Step 1: Write the proportion equation
378,208.44 : 521,762.31 = 270,739.26 : x - Step 2: Convert to fraction form
378,208.44/521,762.31 = 270,739.26/x - Step 3: Cross multiply
378,208.44x = 521,762.31 × 270,739.26 - Step 4: Simplify right side
378,208.44x = 141,261,541,705.29 - Step 5: Solve for x
x = 141,261,541,705.29/378,208.44 - Step 6: Final answer
x = 373,501.82
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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.