Finding the Fourth Proportional to 378,203.27, 521,911.52 and 206,126.66
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Solution
The fourth proportional to 378,203.27, 521,911.52 and 206,126.66 is: 284,449.90
Step by Step Solution
- Step 1: Write the proportion equation
378,203.27 : 521,911.52 = 206,126.66 : x - Step 2: Convert to fraction form
378,203.27/521,911.52 = 206,126.66/x - Step 3: Cross multiply
378,203.27x = 521,911.52 × 206,126.66 - Step 4: Simplify right side
378,203.27x = 107,579,879,480.24 - Step 5: Solve for x
x = 107,579,879,480.24/378,203.27 - Step 6: Final answer
x = 284,449.90
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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.