Finding the Fourth Proportional to 163.30, 225.36 and 97.79
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Solution
The fourth proportional to 163.30, 225.36 and 97.79 is: 134.96
Step by Step Solution
- Step 1: Write the proportion equation
163.30 : 225.36 = 97.79 : x - Step 2: Convert to fraction form
163.30/225.36 = 97.79/x - Step 3: Cross multiply
163.30x = 225.36 × 97.79 - Step 4: Simplify right side
163.30x = 22,037.95 - Step 5: Solve for x
x = 22,037.95/163.30 - Step 6: Final answer
x = 134.96
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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.