Finding the Fourth Proportional to 389,161.20, 583,759.26 and 119,269.56
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Solution
The fourth proportional to 389,161.20, 583,759.26 and 119,269.56 is: 178,909.69
Step by Step Solution
- Step 1: Write the proportion equation
389,161.20 : 583,759.26 = 119,269.56 : x - Step 2: Convert to fraction form
389,161.20/583,759.26 = 119,269.56/x - Step 3: Cross multiply
389,161.20x = 583,759.26 × 119,269.56 - Step 4: Simplify right side
389,161.20x = 69,624,710,086.13 - Step 5: Solve for x
x = 69,624,710,086.13/389,161.20 - Step 6: Final answer
x = 178,909.69
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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.