Finding the Fourth Proportional to 135.26, 203.10 and 115.10
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Solution
The fourth proportional to 135.26, 203.10 and 115.10 is: 172.83
Step by Step Solution
- Step 1: Write the proportion equation
135.26 : 203.10 = 115.10 : x - Step 2: Convert to fraction form
135.26/203.10 = 115.10/x - Step 3: Cross multiply
135.26x = 203.10 × 115.10 - Step 4: Simplify right side
135.26x = 23,376.81 - Step 5: Solve for x
x = 23,376.81/135.26 - Step 6: Final answer
x = 172.83
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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.