Finding the Fourth Proportional to 163.06, 224.91 and 130.39
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Solution
The fourth proportional to 163.06, 224.91 and 130.39 is: 179.85
Step by Step Solution
- Step 1: Write the proportion equation
163.06 : 224.91 = 130.39 : x - Step 2: Convert to fraction form
163.06/224.91 = 130.39/x - Step 3: Cross multiply
163.06x = 224.91 × 130.39 - Step 4: Simplify right side
163.06x = 29,326.01 - Step 5: Solve for x
x = 29,326.01/163.06 - Step 6: Final answer
x = 179.85
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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.