Finding the Fourth Proportional to 394,819.15, 544,850.42 and 213,531.08
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Solution
The fourth proportional to 394,819.15, 544,850.42 and 213,531.08 is: 294,672.89
Step by Step Solution
- Step 1: Write the proportion equation
394,819.15 : 544,850.42 = 213,531.08 : x - Step 2: Convert to fraction form
394,819.15/544,850.42 = 213,531.08/x - Step 3: Cross multiply
394,819.15x = 544,850.42 × 213,531.08 - Step 4: Simplify right side
394,819.15x = 116,342,500,371.02 - Step 5: Solve for x
x = 116,342,500,371.02/394,819.15 - Step 6: Final answer
x = 294,672.89
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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.