Finding the Fourth Proportional to 147,747.75, 221,621.63 and 36,939.75
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Solution
The fourth proportional to 147,747.75, 221,621.63 and 36,939.75 is: 55,409.63
Step by Step Solution
- Step 1: Write the proportion equation
147,747.75 : 221,621.63 = 36,939.75 : x - Step 2: Convert to fraction form
147,747.75/221,621.63 = 36,939.75/x - Step 3: Cross multiply
147,747.75x = 221,621.63 × 36,939.75 - Step 4: Simplify right side
147,747.75x = 8,186,647,422.09 - Step 5: Solve for x
x = 8,186,647,422.09/147,747.75 - Step 6: Final answer
x = 55,409.63
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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.