Finding the Fourth Proportional to 355.37, 490.37 and 207.99
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Solution
The fourth proportional to 355.37, 490.37 and 207.99 is: 287.00
Step by Step Solution
- Step 1: Write the proportion equation
355.37 : 490.37 = 207.99 : x - Step 2: Convert to fraction form
355.37/490.37 = 207.99/x - Step 3: Cross multiply
355.37x = 490.37 × 207.99 - Step 4: Simplify right side
355.37x = 101,991.02 - Step 5: Solve for x
x = 101,991.02/355.37 - Step 6: Final answer
x = 287.00
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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.