Finding the Fourth Proportional to 135.42, 202.75 and 103.26
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Solution
The fourth proportional to 135.42, 202.75 and 103.26 is: 154.60
Step by Step Solution
- Step 1: Write the proportion equation
135.42 : 202.75 = 103.26 : x - Step 2: Convert to fraction form
135.42/202.75 = 103.26/x - Step 3: Cross multiply
135.42x = 202.75 × 103.26 - Step 4: Simplify right side
135.42x = 20,935.97 - Step 5: Solve for x
x = 20,935.97/135.42 - Step 6: Final answer
x = 154.60
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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.