Finding the Fourth Proportional to 312,951.14, 469,514.20 and 102,736.70
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Solution
The fourth proportional to 312,951.14, 469,514.20 and 102,736.70 is: 154,133.77
Step by Step Solution
- Step 1: Write the proportion equation
312,951.14 : 469,514.20 = 102,736.70 : x - Step 2: Convert to fraction form
312,951.14/469,514.20 = 102,736.70/x - Step 3: Cross multiply
312,951.14x = 469,514.20 × 102,736.70 - Step 4: Simplify right side
312,951.14x = 48,236,339,511.14 - Step 5: Solve for x
x = 48,236,339,511.14/312,951.14 - Step 6: Final answer
x = 154,133.77
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.