Finding the Fourth Proportional to 400.97, 553.44 and 261.26
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Solution
The fourth proportional to 400.97, 553.44 and 261.26 is: 360.60
Step by Step Solution
- Step 1: Write the proportion equation
400.97 : 553.44 = 261.26 : x - Step 2: Convert to fraction form
400.97/553.44 = 261.26/x - Step 3: Cross multiply
400.97x = 553.44 × 261.26 - Step 4: Simplify right side
400.97x = 144,591.73 - Step 5: Solve for x
x = 144,591.73/400.97 - Step 6: Final answer
x = 360.60
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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.