Finding the Fourth Proportional to 289,811.70, 434,717.55 and 201,165.30
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Solution
The fourth proportional to 289,811.70, 434,717.55 and 201,165.30 is: 301,747.95
Step by Step Solution
- Step 1: Write the proportion equation
289,811.70 : 434,717.55 = 201,165.30 : x - Step 2: Convert to fraction form
289,811.70/434,717.55 = 201,165.30/x - Step 3: Cross multiply
289,811.70x = 434,717.55 × 201,165.30 - Step 4: Simplify right side
289,811.70x = 87,450,086,361.02 - Step 5: Solve for x
x = 87,450,086,361.02/289,811.70 - Step 6: Final answer
x = 301,747.95
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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.