Finding the Fourth Proportional to 163.13, 225.21 and 113.41
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Solution
The fourth proportional to 163.13, 225.21 and 113.41 is: 156.57
Step by Step Solution
- Step 1: Write the proportion equation
163.13 : 225.21 = 113.41 : x - Step 2: Convert to fraction form
163.13/225.21 = 113.41/x - Step 3: Cross multiply
163.13x = 225.21 × 113.41 - Step 4: Simplify right side
163.13x = 25,541.07 - Step 5: Solve for x
x = 25,541.07/163.13 - Step 6: Final answer
x = 156.57
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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.