Finding the Fourth Proportional to 508,107.91, 762,162.16 and 129,057.07
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Solution
The fourth proportional to 508,107.91, 762,162.16 and 129,057.07 is: 193,585.68
Step by Step Solution
- Step 1: Write the proportion equation
508,107.91 : 762,162.16 = 129,057.07 : x - Step 2: Convert to fraction form
508,107.91/762,162.16 = 129,057.07/x - Step 3: Cross multiply
508,107.91x = 762,162.16 × 129,057.07 - Step 4: Simplify right side
508,107.91x = 98,362,414,589.19 - Step 5: Solve for x
x = 98,362,414,589.19/508,107.91 - Step 6: Final answer
x = 193,585.68
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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.