Finding the Fourth Proportional to 543,641.26, 815,138.88 and 206,706.56
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Solution
The fourth proportional to 543,641.26, 815,138.88 and 206,706.56 is: 309,937.02
Step by Step Solution
- Step 1: Write the proportion equation
543,641.26 : 815,138.88 = 206,706.56 : x - Step 2: Convert to fraction form
543,641.26/815,138.88 = 206,706.56/x - Step 3: Cross multiply
543,641.26x = 815,138.88 × 206,706.56 - Step 4: Simplify right side
543,641.26x = 168,494,553,807.05 - Step 5: Solve for x
x = 168,494,553,807.05/543,641.26 - Step 6: Final answer
x = 309,937.02
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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.