Finding the Fourth Proportional to 455.96, 629.09 and 259.44
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Solution
The fourth proportional to 455.96, 629.09 and 259.44 is: 357.95
Step by Step Solution
- Step 1: Write the proportion equation
455.96 : 629.09 = 259.44 : x - Step 2: Convert to fraction form
455.96/629.09 = 259.44/x - Step 3: Cross multiply
455.96x = 629.09 × 259.44 - Step 4: Simplify right side
455.96x = 163,209.81 - Step 5: Solve for x
x = 163,209.81/455.96 - Step 6: Final answer
x = 357.95
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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.