Finding the Fourth Proportional to 394,857.15, 544,902.91 and 213,569.09
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Solution
The fourth proportional to 394,857.15, 544,902.91 and 213,569.09 is: 294,725.37
Step by Step Solution
- Step 1: Write the proportion equation
394,857.15 : 544,902.91 = 213,569.09 : x - Step 2: Convert to fraction form
394,857.15/544,902.91 = 213,569.09/x - Step 3: Cross multiply
394,857.15x = 544,902.91 × 213,569.09 - Step 4: Simplify right side
394,857.15x = 116,374,418,627.05 - Step 5: Solve for x
x = 116,374,418,627.05/394,857.15 - Step 6: Final answer
x = 294,725.37
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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.