Finding the Fourth Proportional to 135.44, 203 and 87.36
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Solution
The fourth proportional to 135.44, 203 and 87.36 is: 130.94
Step by Step Solution
- Step 1: Write the proportion equation
135.44 : 203 = 87.36 : x - Step 2: Convert to fraction form
135.44/203 = 87.36/x - Step 3: Cross multiply
135.44x = 203 × 87.36 - Step 4: Simplify right side
135.44x = 17,734.08 - Step 5: Solve for x
x = 17,734.08/135.44 - Step 6: Final answer
x = 130.94
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.