Finding the Fourth Proportional to 220,809.55, 330,709.93 and 131,880.67
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Solution
The fourth proportional to 220,809.55, 330,709.93 and 131,880.67 is: 197,519.75
Step by Step Solution
- Step 1: Write the proportion equation
220,809.55 : 330,709.93 = 131,880.67 : x - Step 2: Convert to fraction form
220,809.55/330,709.93 = 131,880.67/x - Step 3: Cross multiply
220,809.55x = 330,709.93 × 131,880.67 - Step 4: Simplify right side
220,809.55x = 43,614,247,144.05 - Step 5: Solve for x
x = 43,614,247,144.05/220,809.55 - Step 6: Final answer
x = 197,519.75
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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.