Finding the Fourth Proportional to 289,302.24, 434,022.66 and 120,728.78
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Solution
The fourth proportional to 289,302.24, 434,022.66 and 120,728.78 is: 181,122.09
Step by Step Solution
- Step 1: Write the proportion equation
289,302.24 : 434,022.66 = 120,728.78 : x - Step 2: Convert to fraction form
289,302.24/434,022.66 = 120,728.78/x - Step 3: Cross multiply
289,302.24x = 434,022.66 × 120,728.78 - Step 4: Simplify right side
289,302.24x = 52,399,026,234.15 - Step 5: Solve for x
x = 52,399,026,234.15/289,302.24 - Step 6: Final answer
x = 181,122.09
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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.