Finding the Fourth Proportional to 189,073.13, 283,609.68 and 129,728.88
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Solution
The fourth proportional to 189,073.13, 283,609.68 and 129,728.88 is: 194,593.31
Step by Step Solution
- Step 1: Write the proportion equation
189,073.13 : 283,609.68 = 129,728.88 : x - Step 2: Convert to fraction form
189,073.13/283,609.68 = 129,728.88/x - Step 3: Cross multiply
189,073.13x = 283,609.68 × 129,728.88 - Step 4: Simplify right side
189,073.13x = 36,792,366,143.56 - Step 5: Solve for x
x = 36,792,366,143.56/189,073.13 - Step 6: Final answer
x = 194,593.31
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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.