Finding the Fourth Proportional to 191,531.99, 264,311.64 and 105,489.33
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Solution
The fourth proportional to 191,531.99, 264,311.64 and 105,489.33 is: 145,573.90
Step by Step Solution
- Step 1: Write the proportion equation
191,531.99 : 264,311.64 = 105,489.33 : x - Step 2: Convert to fraction form
191,531.99/264,311.64 = 105,489.33/x - Step 3: Cross multiply
191,531.99x = 264,311.64 × 105,489.33 - Step 4: Simplify right side
191,531.99x = 27,882,057,814.80 - Step 5: Solve for x
x = 27,882,057,814.80/191,531.99 - Step 6: Final answer
x = 145,573.90
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.