Finding the Fourth Proportional to 393,724.75, 543,340.17 and 214,876.75
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Solution
The fourth proportional to 393,724.75, 543,340.17 and 214,876.75 is: 296,529.92
Step by Step Solution
- Step 1: Write the proportion equation
393,724.75 : 543,340.17 = 214,876.75 : x - Step 2: Convert to fraction form
393,724.75/543,340.17 = 214,876.75/x - Step 3: Cross multiply
393,724.75x = 543,340.17 × 214,876.75 - Step 4: Simplify right side
393,724.75x = 116,751,169,874.05 - Step 5: Solve for x
x = 116,751,169,874.05/393,724.75 - Step 6: Final answer
x = 296,529.92
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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.