Finding the Fourth Proportional to 214.49, 321.50 and 122.99
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Solution
The fourth proportional to 214.49, 321.50 and 122.99 is: 184.36
Step by Step Solution
- Step 1: Write the proportion equation
214.49 : 321.50 = 122.99 : x - Step 2: Convert to fraction form
214.49/321.50 = 122.99/x - Step 3: Cross multiply
214.49x = 321.50 × 122.99 - Step 4: Simplify right side
214.49x = 39,541.79 - Step 5: Solve for x
x = 39,541.79/214.49 - Step 6: Final answer
x = 184.36
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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.