Finding the Fourth Proportional to 486.93, 671.93 and 277.08
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Solution
The fourth proportional to 486.93, 671.93 and 277.08 is: 382.35
Step by Step Solution
- Step 1: Write the proportion equation
486.93 : 671.93 = 277.08 : x - Step 2: Convert to fraction form
486.93/671.93 = 277.08/x - Step 3: Cross multiply
486.93x = 671.93 × 277.08 - Step 4: Simplify right side
486.93x = 186,175.00 - Step 5: Solve for x
x = 186,175.00/486.93 - Step 6: Final answer
x = 382.35
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.