Finding the Third Proportional to 438 and 533
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Solution
The third proportional to 438 and 533 is: 648.61
Step by Step Solution
- Step 1: Write the proportion equation
438 : 533 = 533 : x - Step 2: Convert to fraction form
438/533 = 533/x - Step 3: Cross multiply
438x = 533 × 533 - Step 4: Simplify right side
438x = 284,089 - Step 5: Solve for x
x = 284,089/438 - Step 6: Final answer
x = 648.61
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These problems maintain the same ratio (1.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.