Finding the Fourth Proportional to 211,661.45, 317,589.37 and 91,754.99
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Solution
The fourth proportional to 211,661.45, 317,589.37 and 91,754.99 is: 137,674.61
Step by Step Solution
- Step 1: Write the proportion equation
211,661.45 : 317,589.37 = 91,754.99 : x - Step 2: Convert to fraction form
211,661.45/317,589.37 = 91,754.99/x - Step 3: Cross multiply
211,661.45x = 317,589.37 × 91,754.99 - Step 4: Simplify right side
211,661.45x = 29,140,407,651.12 - Step 5: Solve for x
x = 29,140,407,651.12/211,661.45 - Step 6: Final answer
x = 137,674.61
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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.