Finding the Fourth Proportional to 288,845.92, 398,644.50 and 161,528.68
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Solution
The fourth proportional to 288,845.92, 398,644.50 and 161,528.68 is: 222,930.34
Step by Step Solution
- Step 1: Write the proportion equation
288,845.92 : 398,644.50 = 161,528.68 : x - Step 2: Convert to fraction form
288,845.92/398,644.50 = 161,528.68/x - Step 3: Cross multiply
288,845.92x = 398,644.50 × 161,528.68 - Step 4: Simplify right side
288,845.92x = 64,392,519,874.26 - Step 5: Solve for x
x = 64,392,519,874.26/288,845.92 - Step 6: Final answer
x = 222,930.34
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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.