Finding the Fourth Proportional to 440.49, 660.99 and 180.44
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Solution
The fourth proportional to 440.49, 660.99 and 180.44 is: 270.76
Step by Step Solution
- Step 1: Write the proportion equation
440.49 : 660.99 = 180.44 : x - Step 2: Convert to fraction form
440.49/660.99 = 180.44/x - Step 3: Cross multiply
440.49x = 660.99 × 180.44 - Step 4: Simplify right side
440.49x = 119,265.73 - Step 5: Solve for x
x = 119,265.73/440.49 - Step 6: Final answer
x = 270.76
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1.5x scale
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.