Finding the Fourth Proportional to 260,161.20, 390,158.75 and 82,626.68
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Solution
The fourth proportional to 260,161.20, 390,158.75 and 82,626.68 is: 123,913.65
Step by Step Solution
- Step 1: Write the proportion equation
260,161.20 : 390,158.75 = 82,626.68 : x - Step 2: Convert to fraction form
260,161.20/390,158.75 = 82,626.68/x - Step 3: Cross multiply
260,161.20x = 390,158.75 × 82,626.68 - Step 4: Simplify right side
260,161.20x = 32,237,523,367.41 - Step 5: Solve for x
x = 32,237,523,367.41/260,161.20 - Step 6: Final answer
x = 123,913.65
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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.