Finding the Fourth Proportional to 255.66, 382.99 and 133.63
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Solution
The fourth proportional to 255.66, 382.99 and 133.63 is: 200.18
Step by Step Solution
- Step 1: Write the proportion equation
255.66 : 382.99 = 133.63 : x - Step 2: Convert to fraction form
255.66/382.99 = 133.63/x - Step 3: Cross multiply
255.66x = 382.99 × 133.63 - Step 4: Simplify right side
255.66x = 51,177.18 - Step 5: Solve for x
x = 51,177.18/255.66 - Step 6: Final answer
x = 200.18
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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.