Finding the Fourth Proportional to 378,392.43, 522,185.62 and 206,308.99
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Solution
The fourth proportional to 378,392.43, 522,185.62 and 206,308.99 is: 284,708.62
Step by Step Solution
- Step 1: Write the proportion equation
378,392.43 : 522,185.62 = 206,308.99 : x - Step 2: Convert to fraction form
378,392.43/522,185.62 = 206,308.99/x - Step 3: Cross multiply
378,392.43x = 522,185.62 × 206,308.99 - Step 4: Simplify right side
378,392.43x = 107,731,585,243.80 - Step 5: Solve for x
x = 107,731,585,243.80/378,392.43 - Step 6: Final answer
x = 284,708.62
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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.