Finding the Fourth Proportional to 204.91, 282.72 and 121.99
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Solution
The fourth proportional to 204.91, 282.72 and 121.99 is: 168.31
Step by Step Solution
- Step 1: Write the proportion equation
204.91 : 282.72 = 121.99 : x - Step 2: Convert to fraction form
204.91/282.72 = 121.99/x - Step 3: Cross multiply
204.91x = 282.72 × 121.99 - Step 4: Simplify right side
204.91x = 34,489.01 - Step 5: Solve for x
x = 34,489.01/204.91 - Step 6: Final answer
x = 168.31
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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.