Finding the Fourth Proportional to 174.20, 239.99 and 124.99
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Solution
The fourth proportional to 174.20, 239.99 and 124.99 is: 172.19
Step by Step Solution
- Step 1: Write the proportion equation
174.20 : 239.99 = 124.99 : x - Step 2: Convert to fraction form
174.20/239.99 = 124.99/x - Step 3: Cross multiply
174.20x = 239.99 × 124.99 - Step 4: Simplify right side
174.20x = 29,995.13 - Step 5: Solve for x
x = 29,995.13/174.20 - Step 6: Final answer
x = 172.19
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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.