Finding the Fourth Proportional to 855.84, 1,283.93 and 270.99
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Solution
The fourth proportional to 855.84, 1,283.93 and 270.99 is: 406.54
Step by Step Solution
- Step 1: Write the proportion equation
855.84 : 1,283.93 = 270.99 : x - Step 2: Convert to fraction form
855.84/1,283.93 = 270.99/x - Step 3: Cross multiply
855.84x = 1,283.93 × 270.99 - Step 4: Simplify right side
855.84x = 347,932.19 - Step 5: Solve for x
x = 347,932.19/855.84 - Step 6: Final answer
x = 406.54
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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.