Finding the Fourth Proportional to 306,135.21, 422,471.66 and 168,319.97
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Solution
The fourth proportional to 306,135.21, 422,471.66 and 168,319.97 is: 232,284.34
Step by Step Solution
- Step 1: Write the proportion equation
306,135.21 : 422,471.66 = 168,319.97 : x - Step 2: Convert to fraction form
306,135.21/422,471.66 = 168,319.97/x - Step 3: Cross multiply
306,135.21x = 422,471.66 × 168,319.97 - Step 4: Simplify right side
306,135.21x = 71,110,414,183.09 - Step 5: Solve for x
x = 71,110,414,183.09/306,135.21 - Step 6: Final answer
x = 232,284.34
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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.