Finding the Fourth Proportional to 204.88, 282.74 and 121.99
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Solution
The fourth proportional to 204.88, 282.74 and 121.99 is: 168.35
Step by Step Solution
- Step 1: Write the proportion equation
204.88 : 282.74 = 121.99 : x - Step 2: Convert to fraction form
204.88/282.74 = 121.99/x - Step 3: Cross multiply
204.88x = 282.74 × 121.99 - Step 4: Simplify right side
204.88x = 34,490.84 - Step 5: Solve for x
x = 34,490.84/204.88 - Step 6: Final answer
x = 168.35
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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.