Finding the Fourth Proportional to 397,709.06, 548,850.86 and 225,634.28
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Solution
The fourth proportional to 397,709.06, 548,850.86 and 225,634.28 is: 311,382.31
Step by Step Solution
- Step 1: Write the proportion equation
397,709.06 : 548,850.86 = 225,634.28 : x - Step 2: Convert to fraction form
397,709.06/548,850.86 = 225,634.28/x - Step 3: Cross multiply
397,709.06x = 548,850.86 × 225,634.28 - Step 4: Simplify right side
397,709.06x = 123,839,564,751.06 - Step 5: Solve for x
x = 123,839,564,751.06/397,709.06 - Step 6: Final answer
x = 311,382.31
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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.