Finding the Fourth Proportional to 163.70, 225.71 and 149.88
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Solution
The fourth proportional to 163.70, 225.71 and 149.88 is: 206.65
Step by Step Solution
- Step 1: Write the proportion equation
163.70 : 225.71 = 149.88 : x - Step 2: Convert to fraction form
163.70/225.71 = 149.88/x - Step 3: Cross multiply
163.70x = 225.71 × 149.88 - Step 4: Simplify right side
163.70x = 33,829.41 - Step 5: Solve for x
x = 33,829.41/163.70 - Step 6: Final answer
x = 206.65
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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.