Finding the Third Proportional to 438 and 475
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Solution
The third proportional to 438 and 475 is: 515.13
Step by Step Solution
- Step 1: Write the proportion equation
438 : 475 = 475 : x - Step 2: Convert to fraction form
438/475 = 475/x - Step 3: Cross multiply
438x = 475 × 475 - Step 4: Simplify right side
438x = 225,625 - Step 5: Solve for x
x = 225,625/438 - Step 6: Final answer
x = 515.13
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These problems maintain the same ratio (1.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.