Finding the Third Proportional to 453 and 991.31
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Solution
The third proportional to 453 and 991.31 is: 2,169.32
Step by Step Solution
- Step 1: Write the proportion equation
453 : 991.31 = 991.31 : x - Step 2: Convert to fraction form
453/991.31 = 991.31/x - Step 3: Cross multiply
453x = 991.31 × 991.31 - Step 4: Simplify right side
453x = 982,700.47 - Step 5: Solve for x
x = 982,700.47/453 - Step 6: Final answer
x = 2,169.32
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These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.