Finding the Fourth Proportional to 163.24, 224.09 and 140.20
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Solution
The fourth proportional to 163.24, 224.09 and 140.20 is: 192.46
Step by Step Solution
- Step 1: Write the proportion equation
163.24 : 224.09 = 140.20 : x - Step 2: Convert to fraction form
163.24/224.09 = 140.20/x - Step 3: Cross multiply
163.24x = 224.09 × 140.20 - Step 4: Simplify right side
163.24x = 31,417.42 - Step 5: Solve for x
x = 31,417.42/163.24 - Step 6: Final answer
x = 192.46
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Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.