Finding the Fourth Proportional to 447.39, 617.41 and 260.99
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Solution
The fourth proportional to 447.39, 617.41 and 260.99 is: 360.17
Step by Step Solution
- Step 1: Write the proportion equation
447.39 : 617.41 = 260.99 : x - Step 2: Convert to fraction form
447.39/617.41 = 260.99/x - Step 3: Cross multiply
447.39x = 617.41 × 260.99 - Step 4: Simplify right side
447.39x = 161,135.92 - Step 5: Solve for x
x = 161,135.92/447.39 - Step 6: Final answer
x = 360.17
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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.