Finding the Fourth Proportional to 289,237.21, 433,784.99 and 120,758.92
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Solution
The fourth proportional to 289,237.21, 433,784.99 and 120,758.92 is: 181,108.81
Step by Step Solution
- Step 1: Write the proportion equation
289,237.21 : 433,784.99 = 120,758.92 : x - Step 2: Convert to fraction form
289,237.21/433,784.99 = 120,758.92/x - Step 3: Cross multiply
289,237.21x = 433,784.99 × 120,758.92 - Step 4: Simplify right side
289,237.21x = 52,383,406,122.05 - Step 5: Solve for x
x = 52,383,406,122.05/289,237.21 - Step 6: Final answer
x = 181,108.81
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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.