Finding the Third Proportional to 399 and 483
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Solution
The third proportional to 399 and 483 is: 584.68
Step by Step Solution
- Step 1: Write the proportion equation
399 : 483 = 483 : x - Step 2: Convert to fraction form
399/483 = 483/x - Step 3: Cross multiply
399x = 483 × 483 - Step 4: Simplify right side
399x = 233,289 - Step 5: Solve for x
x = 233,289/399 - Step 6: Final answer
x = 584.68
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Why These Related Problems?
These problems maintain the same ratio (1.21) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.