Finding the Fourth Proportional to 263,137.70, 394,706.55 and 210,649.70
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Solution
The fourth proportional to 263,137.70, 394,706.55 and 210,649.70 is: 315,974.55
Step by Step Solution
- Step 1: Write the proportion equation
263,137.70 : 394,706.55 = 210,649.70 : x - Step 2: Convert to fraction form
263,137.70/394,706.55 = 210,649.70/x - Step 3: Cross multiply
263,137.70x = 394,706.55 × 210,649.70 - Step 4: Simplify right side
263,137.70x = 83,144,816,345.54 - Step 5: Solve for x
x = 83,144,816,345.54/263,137.70 - Step 6: Final answer
x = 315,974.55
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1.5x scale
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.