Finding the Fourth Proportional to 163.02, 224.70 and 113.81
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Solution
The fourth proportional to 163.02, 224.70 and 113.81 is: 156.87
Step by Step Solution
- Step 1: Write the proportion equation
163.02 : 224.70 = 113.81 : x - Step 2: Convert to fraction form
163.02/224.70 = 113.81/x - Step 3: Cross multiply
163.02x = 224.70 × 113.81 - Step 4: Simplify right side
163.02x = 25,571.41 - Step 5: Solve for x
x = 25,571.41/163.02 - Step 6: Final answer
x = 156.87
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.