Finding the Fourth Proportional to 426.99, 640.44 and 183.63
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Solution
The fourth proportional to 426.99, 640.44 and 183.63 is: 275.43
Step by Step Solution
- Step 1: Write the proportion equation
426.99 : 640.44 = 183.63 : x - Step 2: Convert to fraction form
426.99/640.44 = 183.63/x - Step 3: Cross multiply
426.99x = 640.44 × 183.63 - Step 4: Simplify right side
426.99x = 117,604.00 - Step 5: Solve for x
x = 117,604.00/426.99 - Step 6: Final answer
x = 275.43
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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.