Finding the Fourth Proportional to 135.09, 202.44 and 118.80
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Solution
The fourth proportional to 135.09, 202.44 and 118.80 is: 178.03
Step by Step Solution
- Step 1: Write the proportion equation
135.09 : 202.44 = 118.80 : x - Step 2: Convert to fraction form
135.09/202.44 = 118.80/x - Step 3: Cross multiply
135.09x = 202.44 × 118.80 - Step 4: Simplify right side
135.09x = 24,049.87 - Step 5: Solve for x
x = 24,049.87/135.09 - Step 6: Final answer
x = 178.03
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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.