Finding the Fourth Proportional to 259,820.91, 389,742.21 and 82,323.99
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Solution
The fourth proportional to 259,820.91, 389,742.21 and 82,323.99 is: 123,489.42
Step by Step Solution
- Step 1: Write the proportion equation
259,820.91 : 389,742.21 = 82,323.99 : x - Step 2: Convert to fraction form
259,820.91/389,742.21 = 82,323.99/x - Step 3: Cross multiply
259,820.91x = 389,742.21 × 82,323.99 - Step 4: Simplify right side
259,820.91x = 32,085,133,798.62 - Step 5: Solve for x
x = 32,085,133,798.62/259,820.91 - Step 6: Final answer
x = 123,489.42
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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.