Finding the Fourth Proportional to 260,163.20, 390,161.75 and 82,628.68
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Solution
The fourth proportional to 260,163.20, 390,161.75 and 82,628.68 is: 123,916.64
Step by Step Solution
- Step 1: Write the proportion equation
260,163.20 : 390,161.75 = 82,628.68 : x - Step 2: Convert to fraction form
260,163.20/390,161.75 = 82,628.68/x - Step 3: Cross multiply
260,163.20x = 390,161.75 × 82,628.68 - Step 4: Simplify right side
260,163.20x = 32,238,550,388.99 - Step 5: Solve for x
x = 32,238,550,388.99/260,163.20 - Step 6: Final answer
x = 123,916.64
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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.