Finding the Fourth Proportional to 135.44, 203.20 and 44.20
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Solution
The fourth proportional to 135.44, 203.20 and 44.20 is: 66.32
Step by Step Solution
- Step 1: Write the proportion equation
135.44 : 203.20 = 44.20 : x - Step 2: Convert to fraction form
135.44/203.20 = 44.20/x - Step 3: Cross multiply
135.44x = 203.20 × 44.20 - Step 4: Simplify right side
135.44x = 8,981.75 - Step 5: Solve for x
x = 8,981.75/135.44 - Step 6: Final answer
x = 66.32
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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.