Finding the Fourth Proportional to 288,991.62, 398,799.18 and 161,664.48
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Solution
The fourth proportional to 288,991.62, 398,799.18 and 161,664.48 is: 223,091.80
Step by Step Solution
- Step 1: Write the proportion equation
288,991.62 : 398,799.18 = 161,664.48 : x - Step 2: Convert to fraction form
288,991.62/398,799.18 = 161,664.48/x - Step 3: Cross multiply
288,991.62x = 398,799.18 × 161,664.48 - Step 4: Simplify right side
288,991.62x = 64,471,662,059.13 - Step 5: Solve for x
x = 64,471,662,059.13/288,991.62 - Step 6: Final answer
x = 223,091.80
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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.