Finding the Fourth Proportional to 204.12, 306.05 and 122.99
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Solution
The fourth proportional to 204.12, 306.05 and 122.99 is: 184.40
Step by Step Solution
- Step 1: Write the proportion equation
204.12 : 306.05 = 122.99 : x - Step 2: Convert to fraction form
204.12/306.05 = 122.99/x - Step 3: Cross multiply
204.12x = 306.05 × 122.99 - Step 4: Simplify right side
204.12x = 37,638.94 - Step 5: Solve for x
x = 37,638.94/204.12 - Step 6: Final answer
x = 184.40
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.