Finding the Fourth Proportional to 228,578.49, 342,890.43 and 84,522.09
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Solution
The fourth proportional to 228,578.49, 342,890.43 and 84,522.09 is: 126,791.53
Step by Step Solution
- Step 1: Write the proportion equation
228,578.49 : 342,890.43 = 84,522.09 : x - Step 2: Convert to fraction form
228,578.49/342,890.43 = 84,522.09/x - Step 3: Cross multiply
228,578.49x = 342,890.43 × 84,522.09 - Step 4: Simplify right side
228,578.49x = 28,981,816,753.48 - Step 5: Solve for x
x = 28,981,816,753.48/228,578.49 - Step 6: Final answer
x = 126,791.53
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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.