Finding the Fourth Proportional to 260.70, 391.18 and 163.18
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Solution
The fourth proportional to 260.70, 391.18 and 163.18 is: 244.84
Step by Step Solution
- Step 1: Write the proportion equation
260.70 : 391.18 = 163.18 : x - Step 2: Convert to fraction form
260.70/391.18 = 163.18/x - Step 3: Cross multiply
260.70x = 391.18 × 163.18 - Step 4: Simplify right side
260.70x = 63,829.98 - Step 5: Solve for x
x = 63,829.98/260.70 - Step 6: Final answer
x = 244.84
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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.