Finding the Fourth Proportional to 354,022.91, 530,960.55 and 129,489.09
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Solution
The fourth proportional to 354,022.91, 530,960.55 and 129,489.09 is: 194,206.64
Step by Step Solution
- Step 1: Write the proportion equation
354,022.91 : 530,960.55 = 129,489.09 : x - Step 2: Convert to fraction form
354,022.91/530,960.55 = 129,489.09/x - Step 3: Cross multiply
354,022.91x = 530,960.55 × 129,489.09 - Step 4: Simplify right side
354,022.91x = 68,753,598,445.40 - Step 5: Solve for x
x = 68,753,598,445.40/354,022.91 - Step 6: Final answer
x = 194,206.64
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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.