Finding the Fourth Proportional to 393,653.07, 543,054.14 and 232,400.09
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Solution
The fourth proportional to 393,653.07, 543,054.14 and 232,400.09 is: 320,601.67
Step by Step Solution
- Step 1: Write the proportion equation
393,653.07 : 543,054.14 = 232,400.09 : x - Step 2: Convert to fraction form
393,653.07/543,054.14 = 232,400.09/x - Step 3: Cross multiply
393,653.07x = 543,054.14 × 232,400.09 - Step 4: Simplify right side
393,653.07x = 126,205,832,078.01 - Step 5: Solve for x
x = 126,205,832,078.01/393,653.07 - Step 6: Final answer
x = 320,601.67
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1.5x scale
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.