Finding the Fourth Proportional to 221,169.75, 331,754.63 and 73,425.75
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Solution
The fourth proportional to 221,169.75, 331,754.63 and 73,425.75 is: 110,138.63
Step by Step Solution
- Step 1: Write the proportion equation
221,169.75 : 331,754.63 = 73,425.75 : x - Step 2: Convert to fraction form
221,169.75/331,754.63 = 73,425.75/x - Step 3: Cross multiply
221,169.75x = 331,754.63 × 73,425.75 - Step 4: Simplify right side
221,169.75x = 24,359,332,523.72 - Step 5: Solve for x
x = 24,359,332,523.72/221,169.75 - Step 6: Final answer
x = 110,138.63
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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.