Finding the Fourth Proportional to 163.60, 225.74 and 98.08
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Solution
The fourth proportional to 163.60, 225.74 and 98.08 is: 135.33
Step by Step Solution
- Step 1: Write the proportion equation
163.60 : 225.74 = 98.08 : x - Step 2: Convert to fraction form
163.60/225.74 = 98.08/x - Step 3: Cross multiply
163.60x = 225.74 × 98.08 - Step 4: Simplify right side
163.60x = 22,140.58 - Step 5: Solve for x
x = 22,140.58/163.60 - Step 6: Final answer
x = 135.33
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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.