Finding the Fourth Proportional to 201,130.23, 301,691.40 and 81,183.99
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Solution
The fourth proportional to 201,130.23, 301,691.40 and 81,183.99 is: 121,774.39
Step by Step Solution
- Step 1: Write the proportion equation
201,130.23 : 301,691.40 = 81,183.99 : x - Step 2: Convert to fraction form
201,130.23/301,691.40 = 81,183.99/x - Step 3: Cross multiply
201,130.23x = 301,691.40 × 81,183.99 - Step 4: Simplify right side
201,130.23x = 24,492,511,600.69 - Step 5: Solve for x
x = 24,492,511,600.69/201,130.23 - Step 6: Final answer
x = 121,774.39
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.