Finding the Fourth Proportional to 187.24, 258.44 and 125.08
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Solution
The fourth proportional to 187.24, 258.44 and 125.08 is: 172.64
Step by Step Solution
- Step 1: Write the proportion equation
187.24 : 258.44 = 125.08 : x - Step 2: Convert to fraction form
187.24/258.44 = 125.08/x - Step 3: Cross multiply
187.24x = 258.44 × 125.08 - Step 4: Simplify right side
187.24x = 32,325.68 - Step 5: Solve for x
x = 32,325.68/187.24 - Step 6: Final answer
x = 172.64
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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.