Finding the Fourth Proportional to 440.14, 660.18 and 131.99
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Solution
The fourth proportional to 440.14, 660.18 and 131.99 is: 197.98
Step by Step Solution
- Step 1: Write the proportion equation
440.14 : 660.18 = 131.99 : x - Step 2: Convert to fraction form
440.14/660.18 = 131.99/x - Step 3: Cross multiply
440.14x = 660.18 × 131.99 - Step 4: Simplify right side
440.14x = 87,137.16 - Step 5: Solve for x
x = 87,137.16/440.14 - Step 6: Final answer
x = 197.98
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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.