Finding the Third Proportional to 438 and 471
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Solution
The third proportional to 438 and 471 is: 506.49
Step by Step Solution
- Step 1: Write the proportion equation
438 : 471 = 471 : x - Step 2: Convert to fraction form
438/471 = 471/x - Step 3: Cross multiply
438x = 471 × 471 - Step 4: Simplify right side
438x = 221,841 - Step 5: Solve for x
x = 221,841/438 - Step 6: Final answer
x = 506.49
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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.