Finding the Fourth Proportional to 329,747.99, 494,289.68 and 129,991.05
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Solution
The fourth proportional to 329,747.99, 494,289.68 and 129,991.05 is: 194,855.58
Step by Step Solution
- Step 1: Write the proportion equation
329,747.99 : 494,289.68 = 129,991.05 : x - Step 2: Convert to fraction form
329,747.99/494,289.68 = 129,991.05/x - Step 3: Cross multiply
329,747.99x = 494,289.68 × 129,991.05 - Step 4: Simplify right side
329,747.99x = 64,253,233,857.41 - Step 5: Solve for x
x = 64,253,233,857.41/329,747.99 - Step 6: Final answer
x = 194,855.58
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1.5x scale
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.