Finding the Fourth Proportional to 288,112.14, 397,608.93 and 160,785.18
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Solution
The fourth proportional to 288,112.14, 397,608.93 and 160,785.18 is: 221,891.46
Step by Step Solution
- Step 1: Write the proportion equation
288,112.14 : 397,608.93 = 160,785.18 : x - Step 2: Convert to fraction form
288,112.14/397,608.93 = 160,785.18/x - Step 3: Cross multiply
288,112.14x = 397,608.93 × 160,785.18 - Step 4: Simplify right side
288,112.14x = 63,929,623,379.66 - Step 5: Solve for x
x = 63,929,623,379.66/288,112.14 - Step 6: Final answer
x = 221,891.46
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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.