Finding the Fourth Proportional to 151.99, 209.54 and 126.99
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Solution
The fourth proportional to 151.99, 209.54 and 126.99 is: 175.08
Step by Step Solution
- Step 1: Write the proportion equation
151.99 : 209.54 = 126.99 : x - Step 2: Convert to fraction form
151.99/209.54 = 126.99/x - Step 3: Cross multiply
151.99x = 209.54 × 126.99 - Step 4: Simplify right side
151.99x = 26,609.80 - Step 5: Solve for x
x = 26,609.80/151.99 - Step 6: Final answer
x = 175.08
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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.