Finding the Fourth Proportional to 419,694.26, 629,663.98 and 135,378.52
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Solution
The fourth proportional to 419,694.26, 629,663.98 and 135,378.52 is: 203,107.32
Step by Step Solution
- Step 1: Write the proportion equation
419,694.26 : 629,663.98 = 135,378.52 : x - Step 2: Convert to fraction form
419,694.26/629,663.98 = 135,378.52/x - Step 3: Cross multiply
419,694.26x = 629,663.98 × 135,378.52 - Step 4: Simplify right side
419,694.26x = 85,242,977,709.71 - Step 5: Solve for x
x = 85,242,977,709.71/419,694.26 - Step 6: Final answer
x = 203,107.32
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.