Finding the Fourth Proportional to 269,811.75, 371,994.08 and 221,234.70
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Solution
The fourth proportional to 269,811.75, 371,994.08 and 221,234.70 is: 305,020.07
Step by Step Solution
- Step 1: Write the proportion equation
269,811.75 : 371,994.08 = 221,234.70 : x - Step 2: Convert to fraction form
269,811.75/371,994.08 = 221,234.70/x - Step 3: Cross multiply
269,811.75x = 371,994.08 × 221,234.70 - Step 4: Simplify right side
269,811.75x = 82,297,997,584.40 - Step 5: Solve for x
x = 82,297,997,584.40/269,811.75 - Step 6: Final answer
x = 305,020.07
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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.