Finding the Third Proportional to 205,991.44 and 318,319.88
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Solution
The third proportional to 205,991.44 and 318,319.88 is: 491,901.72
Step by Step Solution
- Step 1: Write the proportion equation
205,991.44 : 318,319.88 = 318,319.88 : x - Step 2: Convert to fraction form
205,991.44/318,319.88 = 318,319.88/x - Step 3: Cross multiply
205,991.44x = 318,319.88 × 318,319.88 - Step 4: Simplify right side
205,991.44x = 101,327,542,820.02 - Step 5: Solve for x
x = 101,327,542,820.02/205,991.44 - Step 6: Final answer
x = 491,901.72
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Why These Related Problems?
These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.