Finding the Fourth Proportional to 228,520.62, 315,316.49 and 131,706.99
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Solution
The fourth proportional to 228,520.62, 315,316.49 and 131,706.99 is: 181,731.46
Step by Step Solution
- Step 1: Write the proportion equation
228,520.62 : 315,316.49 = 131,706.99 : x - Step 2: Convert to fraction form
228,520.62/315,316.49 = 131,706.99/x - Step 3: Cross multiply
228,520.62x = 315,316.49 × 131,706.99 - Step 4: Simplify right side
228,520.62x = 41,529,385,136.73 - Step 5: Solve for x
x = 41,529,385,136.73/228,520.62 - Step 6: Final answer
x = 181,731.46
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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.