Finding the Fourth Proportional to 395,367.39, 545,596.96 and 220,939.09
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Solution
The fourth proportional to 395,367.39, 545,596.96 and 220,939.09 is: 304,890.33
Step by Step Solution
- Step 1: Write the proportion equation
395,367.39 : 545,596.96 = 220,939.09 : x - Step 2: Convert to fraction form
395,367.39/545,596.96 = 220,939.09/x - Step 3: Cross multiply
395,367.39x = 545,596.96 × 220,939.09 - Step 4: Simplify right side
395,367.39x = 120,543,695,849.17 - Step 5: Solve for x
x = 120,543,695,849.17/395,367.39 - Step 6: Final answer
x = 304,890.33
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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.