Finding the Fourth Proportional to 163,231.20, 244,846.80 and 121,240.80
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Solution
The fourth proportional to 163,231.20, 244,846.80 and 121,240.80 is: 181,861.20
Step by Step Solution
- Step 1: Write the proportion equation
163,231.20 : 244,846.80 = 121,240.80 : x - Step 2: Convert to fraction form
163,231.20/244,846.80 = 121,240.80/x - Step 3: Cross multiply
163,231.20x = 244,846.80 × 121,240.80 - Step 4: Simplify right side
163,231.20x = 29,685,421,909.44 - Step 5: Solve for x
x = 29,685,421,909.44/163,231.20 - Step 6: Final answer
x = 181,861.20
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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.