Finding the Fourth Proportional to 181.93, 251.18 and 115.58
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Solution
The fourth proportional to 181.93, 251.18 and 115.58 is: 159.57
Step by Step Solution
- Step 1: Write the proportion equation
181.93 : 251.18 = 115.58 : x - Step 2: Convert to fraction form
181.93/251.18 = 115.58/x - Step 3: Cross multiply
181.93x = 251.18 × 115.58 - Step 4: Simplify right side
181.93x = 29,030.13 - Step 5: Solve for x
x = 29,030.13/181.93 - Step 6: Final answer
x = 159.57
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.