Finding the Fourth Proportional to 355.24, 490.24 and 199.99
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Solution
The fourth proportional to 355.24, 490.24 and 199.99 is: 275.99
Step by Step Solution
- Step 1: Write the proportion equation
355.24 : 490.24 = 199.99 : x - Step 2: Convert to fraction form
355.24/490.24 = 199.99/x - Step 3: Cross multiply
355.24x = 490.24 × 199.99 - Step 4: Simplify right side
355.24x = 98,043.10 - Step 5: Solve for x
x = 98,043.10/355.24 - Step 6: Final answer
x = 275.99
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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.