Finding the Fourth Proportional to 392,319.24, 541,618.02 and 269,989.80
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Solution
The fourth proportional to 392,319.24, 541,618.02 and 269,989.80 is: 372,735.58
Step by Step Solution
- Step 1: Write the proportion equation
392,319.24 : 541,618.02 = 269,989.80 : x - Step 2: Convert to fraction form
392,319.24/541,618.02 = 269,989.80/x - Step 3: Cross multiply
392,319.24x = 541,618.02 × 269,989.80 - Step 4: Simplify right side
392,319.24x = 146,231,340,896.20 - Step 5: Solve for x
x = 146,231,340,896.20/392,319.24 - Step 6: Final answer
x = 372,735.58
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.