Finding the Fourth Proportional to 288,555.75, 398,199.51 and 161,232.39
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Solution
The fourth proportional to 288,555.75, 398,199.51 and 161,232.39 is: 222,496.55
Step by Step Solution
- Step 1: Write the proportion equation
288,555.75 : 398,199.51 = 161,232.39 : x - Step 2: Convert to fraction form
288,555.75/398,199.51 = 161,232.39/x - Step 3: Cross multiply
288,555.75x = 398,199.51 × 161,232.39 - Step 4: Simplify right side
288,555.75x = 64,202,658,694.13 - Step 5: Solve for x
x = 64,202,658,694.13/288,555.75 - Step 6: Final answer
x = 222,496.55
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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.