Finding the Fourth Proportional to 389,846.44, 537,992.49 and 228,704.23
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Solution
The fourth proportional to 389,846.44, 537,992.49 and 228,704.23 is: 315,614.42
Step by Step Solution
- Step 1: Write the proportion equation
389,846.44 : 537,992.49 = 228,704.23 : x - Step 2: Convert to fraction form
389,846.44/537,992.49 = 228,704.23/x - Step 3: Cross multiply
389,846.44x = 537,992.49 × 228,704.23 - Step 4: Simplify right side
389,846.44x = 123,041,158,171.23 - Step 5: Solve for x
x = 123,041,158,171.23/389,846.44 - Step 6: Final answer
x = 315,614.42
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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.