Finding the Fourth Proportional to 447.26, 617.13 and 260.75
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Solution
The fourth proportional to 447.26, 617.13 and 260.75 is: 359.79
Step by Step Solution
- Step 1: Write the proportion equation
447.26 : 617.13 = 260.75 : x - Step 2: Convert to fraction form
447.26/617.13 = 260.75/x - Step 3: Cross multiply
447.26x = 617.13 × 260.75 - Step 4: Simplify right side
447.26x = 160,918.19 - Step 5: Solve for x
x = 160,918.19/447.26 - Step 6: Final answer
x = 359.79
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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.