Finding the Fourth Proportional to 208.34, 287.58 and 141.99
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Solution
The fourth proportional to 208.34, 287.58 and 141.99 is: 195.99
Step by Step Solution
- Step 1: Write the proportion equation
208.34 : 287.58 = 141.99 : x - Step 2: Convert to fraction form
208.34/287.58 = 141.99/x - Step 3: Cross multiply
208.34x = 287.58 × 141.99 - Step 4: Simplify right side
208.34x = 40,832.94 - Step 5: Solve for x
x = 40,832.94/208.34 - Step 6: Final answer
x = 195.99
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.