Finding the Fourth Proportional to 394,277.67, 543,913.52 and 258,252.75
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Solution
The fourth proportional to 394,277.67, 543,913.52 and 258,252.75 is: 356,264.56
Step by Step Solution
- Step 1: Write the proportion equation
394,277.67 : 543,913.52 = 258,252.75 : x - Step 2: Convert to fraction form
394,277.67/543,913.52 = 258,252.75/x - Step 3: Cross multiply
394,277.67x = 543,913.52 × 258,252.75 - Step 4: Simplify right side
394,277.67x = 140,467,161,010.92 - Step 5: Solve for x
x = 140,467,161,010.92/394,277.67 - Step 6: Final answer
x = 356,264.56
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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.