Finding the Fourth Proportional to 643,901.40, 965,861.01 and 194,625.99
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Solution
The fourth proportional to 643,901.40, 965,861.01 and 194,625.99 is: 291,941.68
Step by Step Solution
- Step 1: Write the proportion equation
643,901.40 : 965,861.01 = 194,625.99 : x - Step 2: Convert to fraction form
643,901.40/965,861.01 = 194,625.99/x - Step 3: Cross multiply
643,901.40x = 965,861.01 × 194,625.99 - Step 4: Simplify right side
643,901.40x = 187,981,655,273.65 - Step 5: Solve for x
x = 187,981,655,273.65/643,901.40 - Step 6: Final answer
x = 291,941.68
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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.