Finding the Fourth Proportional to 352,716.75, 486,888.62 and 245,349.09
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Solution
The fourth proportional to 352,716.75, 486,888.62 and 245,349.09 is: 338,678.78
Step by Step Solution
- Step 1: Write the proportion equation
352,716.75 : 486,888.62 = 245,349.09 : x - Step 2: Convert to fraction form
352,716.75/486,888.62 = 245,349.09/x - Step 3: Cross multiply
352,716.75x = 486,888.62 × 245,349.09 - Step 4: Simplify right side
352,716.75x = 119,457,678,621.61 - Step 5: Solve for x
x = 119,457,678,621.61/352,716.75 - Step 6: Final answer
x = 338,678.78
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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.