Finding the Third Proportional to 395.63 and 862.13
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Solution
The third proportional to 395.63 and 862.13 is: 1,878.70
Step by Step Solution
- Step 1: Write the proportion equation
395.63 : 862.13 = 862.13 : x - Step 2: Convert to fraction form
395.63/862.13 = 862.13/x - Step 3: Cross multiply
395.63x = 862.13 × 862.13 - Step 4: Simplify right side
395.63x = 743,259.52 - Step 5: Solve for x
x = 743,259.52/395.63 - Step 6: Final answer
x = 1,878.70
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These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.