Finding the Fourth Proportional to 394.20, 544.08 and 246.78
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Solution
The fourth proportional to 394.20, 544.08 and 246.78 is: 340.61
Step by Step Solution
- Step 1: Write the proportion equation
394.20 : 544.08 = 246.78 : x - Step 2: Convert to fraction form
394.20/544.08 = 246.78/x - Step 3: Cross multiply
394.20x = 544.08 × 246.78 - Step 4: Simplify right side
394.20x = 134,268.99 - Step 5: Solve for x
x = 134,268.99/394.20 - Step 6: Final answer
x = 340.61
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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.