Finding the Fourth Proportional to 447.70, 617.96 and 261.26
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Solution
The fourth proportional to 447.70, 617.96 and 261.26 is: 360.62
Step by Step Solution
- Step 1: Write the proportion equation
447.70 : 617.96 = 261.26 : x - Step 2: Convert to fraction form
447.70/617.96 = 261.26/x - Step 3: Cross multiply
447.70x = 617.96 × 261.26 - Step 4: Simplify right side
447.70x = 161,448.23 - Step 5: Solve for x
x = 161,448.23/447.70 - Step 6: Final answer
x = 360.62
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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.