Finding the Fourth Proportional to 394.12, 543.95 and 246.68
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Solution
The fourth proportional to 394.12, 543.95 and 246.68 is: 340.45
Step by Step Solution
- Step 1: Write the proportion equation
394.12 : 543.95 = 246.68 : x - Step 2: Convert to fraction form
394.12/543.95 = 246.68/x - Step 3: Cross multiply
394.12x = 543.95 × 246.68 - Step 4: Simplify right side
394.12x = 134,177.63 - Step 5: Solve for x
x = 134,177.63/394.12 - Step 6: Final answer
x = 340.45
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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.