Finding the Fourth Proportional to 449,191.53, 673,884.09 and 129,341.18
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Solution
The fourth proportional to 449,191.53, 673,884.09 and 129,341.18 is: 194,039.65
Step by Step Solution
- Step 1: Write the proportion equation
449,191.53 : 673,884.09 = 129,341.18 : x - Step 2: Convert to fraction form
449,191.53/673,884.09 = 129,341.18/x - Step 3: Cross multiply
449,191.53x = 673,884.09 × 129,341.18 - Step 4: Simplify right side
449,191.53x = 87,160,965,068.54 - Step 5: Solve for x
x = 87,160,965,068.54/449,191.53 - Step 6: Final answer
x = 194,039.65
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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.