Finding the Third Proportional to 290,219.20 and 439,717.99
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Solution
The third proportional to 290,219.20 and 439,717.99 is: 666,227.15
Step by Step Solution
- Step 1: Write the proportion equation
290,219.20 : 439,717.99 = 439,717.99 : x - Step 2: Convert to fraction form
290,219.20/439,717.99 = 439,717.99/x - Step 3: Cross multiply
290,219.20x = 439,717.99 × 439,717.99 - Step 4: Simplify right side
290,219.20x = 193,351,912,653.41 - Step 5: Solve for x
x = 193,351,912,653.41/290,219.20 - Step 6: Final answer
x = 666,227.15
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These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.