Finding the Fourth Proportional to 154.58, 213.19 and 125.08
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Solution
The fourth proportional to 154.58, 213.19 and 125.08 is: 172.50
Step by Step Solution
- Step 1: Write the proportion equation
154.58 : 213.19 = 125.08 : x - Step 2: Convert to fraction form
154.58/213.19 = 125.08/x - Step 3: Cross multiply
154.58x = 213.19 × 125.08 - Step 4: Simplify right side
154.58x = 26,664.96 - Step 5: Solve for x
x = 26,664.96/154.58 - Step 6: Final answer
x = 172.50
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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.