Finding the Fourth Proportional to 288,194.40, 397,695.60 and 160,867.44
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Solution
The fourth proportional to 288,194.40, 397,695.60 and 160,867.44 is: 221,989.99
Step by Step Solution
- Step 1: Write the proportion equation
288,194.40 : 397,695.60 = 160,867.44 : x - Step 2: Convert to fraction form
288,194.40/397,695.60 = 160,867.44/x - Step 3: Cross multiply
288,194.40x = 397,695.60 × 160,867.44 - Step 4: Simplify right side
288,194.40x = 63,976,273,071.26 - Step 5: Solve for x
x = 63,976,273,071.26/288,194.40 - Step 6: Final answer
x = 221,989.99
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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.