Finding the Fourth Proportional to 354,529.79, 531,545.49 and 129,861.02
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Solution
The fourth proportional to 354,529.79, 531,545.49 and 129,861.02 is: 194,700.26
Step by Step Solution
- Step 1: Write the proportion equation
354,529.79 : 531,545.49 = 129,861.02 : x - Step 2: Convert to fraction form
354,529.79/531,545.49 = 129,861.02/x - Step 3: Cross multiply
354,529.79x = 531,545.49 × 129,861.02 - Step 4: Simplify right side
354,529.79x = 69,027,040,836.66 - Step 5: Solve for x
x = 69,027,040,836.66/354,529.79 - Step 6: Final answer
x = 194,700.26
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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.