Finding the Fourth Proportional to 490.60, 735.91 and 165.99
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Solution
The fourth proportional to 490.60, 735.91 and 165.99 is: 248.99
Step by Step Solution
- Step 1: Write the proportion equation
490.60 : 735.91 = 165.99 : x - Step 2: Convert to fraction form
490.60/735.91 = 165.99/x - Step 3: Cross multiply
490.60x = 735.91 × 165.99 - Step 4: Simplify right side
490.60x = 122,153.70 - Step 5: Solve for x
x = 122,153.70/490.60 - Step 6: Final answer
x = 248.99
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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.