Finding the Fourth Proportional to 312,046.58, 430,622.96 and 168,806.26
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Solution
The fourth proportional to 312,046.58, 430,622.96 and 168,806.26 is: 232,951.92
Step by Step Solution
- Step 1: Write the proportion equation
312,046.58 : 430,622.96 = 168,806.26 : x - Step 2: Convert to fraction form
312,046.58/430,622.96 = 168,806.26/x - Step 3: Cross multiply
312,046.58x = 430,622.96 × 168,806.26 - Step 4: Simplify right side
312,046.58x = 72,691,851,347.73 - Step 5: Solve for x
x = 72,691,851,347.73/312,046.58 - Step 6: Final answer
x = 232,951.92
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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.