Finding the Fourth Proportional to 259,832.91, 389,760.21 and 82,335.99
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Solution
The fourth proportional to 259,832.91, 389,760.21 and 82,335.99 is: 123,507.42
Step by Step Solution
- Step 1: Write the proportion equation
259,832.91 : 389,760.21 = 82,335.99 : x - Step 2: Convert to fraction form
259,832.91/389,760.21 = 82,335.99/x - Step 3: Cross multiply
259,832.91x = 389,760.21 × 82,335.99 - Step 4: Simplify right side
259,832.91x = 32,091,292,752.96 - Step 5: Solve for x
x = 32,091,292,752.96/259,832.91 - Step 6: Final answer
x = 123,507.42
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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.