Finding the Fourth Proportional to 149.65, 223.93 and 115.19
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Solution
The fourth proportional to 149.65, 223.93 and 115.19 is: 172.37
Step by Step Solution
- Step 1: Write the proportion equation
149.65 : 223.93 = 115.19 : x - Step 2: Convert to fraction form
149.65/223.93 = 115.19/x - Step 3: Cross multiply
149.65x = 223.93 × 115.19 - Step 4: Simplify right side
149.65x = 25,794.36 - Step 5: Solve for x
x = 25,794.36/149.65 - Step 6: Final answer
x = 172.37
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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.