Finding the Fourth Proportional to 135.43, 202.97 and 54.23
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Solution
The fourth proportional to 135.43, 202.97 and 54.23 is: 81.27
Step by Step Solution
- Step 1: Write the proportion equation
135.43 : 202.97 = 54.23 : x - Step 2: Convert to fraction form
135.43/202.97 = 54.23/x - Step 3: Cross multiply
135.43x = 202.97 × 54.23 - Step 4: Simplify right side
135.43x = 11,006.18 - Step 5: Solve for x
x = 11,006.18/135.43 - Step 6: Final answer
x = 81.27
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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.