Finding the Fourth Proportional to 102.91, 154.26 and 41.23
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Solution
The fourth proportional to 102.91, 154.26 and 41.23 is: 61.80
Step by Step Solution
- Step 1: Write the proportion equation
102.91 : 154.26 = 41.23 : x - Step 2: Convert to fraction form
102.91/154.26 = 41.23/x - Step 3: Cross multiply
102.91x = 154.26 × 41.23 - Step 4: Simplify right side
102.91x = 6,360.14 - Step 5: Solve for x
x = 6,360.14/102.91 - Step 6: Final answer
x = 61.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.