Finding the Fourth Proportional to 427.75, 590.34 and 261.99
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Solution
The fourth proportional to 427.75, 590.34 and 261.99 is: 361.57
Step by Step Solution
- Step 1: Write the proportion equation
427.75 : 590.34 = 261.99 : x - Step 2: Convert to fraction form
427.75/590.34 = 261.99/x - Step 3: Cross multiply
427.75x = 590.34 × 261.99 - Step 4: Simplify right side
427.75x = 154,660.22 - Step 5: Solve for x
x = 154,660.22/427.75 - Step 6: Final answer
x = 361.57
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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.