Finding the Fourth Proportional to 397,421.64, 548,164.26 and 269,875.80
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Solution
The fourth proportional to 397,421.64, 548,164.26 and 269,875.80 is: 372,240.09
Step by Step Solution
- Step 1: Write the proportion equation
397,421.64 : 548,164.26 = 269,875.80 : x - Step 2: Convert to fraction form
397,421.64/548,164.26 = 269,875.80/x - Step 3: Cross multiply
397,421.64x = 548,164.26 × 269,875.80 - Step 4: Simplify right side
397,421.64x = 147,936,268,198.91 - Step 5: Solve for x
x = 147,936,268,198.91/397,421.64 - Step 6: Final answer
x = 372,240.09
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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.