Finding the Fourth Proportional to 395,371.26, 545,621.67 and 225,621.18
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Solution
The fourth proportional to 395,371.26, 545,621.67 and 225,621.18 is: 311,362.55
Step by Step Solution
- Step 1: Write the proportion equation
395,371.26 : 545,621.67 = 225,621.18 : x - Step 2: Convert to fraction form
395,371.26/545,621.67 = 225,621.18/x - Step 3: Cross multiply
395,371.26x = 545,621.67 × 225,621.18 - Step 4: Simplify right side
395,371.26x = 123,103,805,018.97 - Step 5: Solve for x
x = 123,103,805,018.97/395,371.26 - Step 6: Final answer
x = 311,362.55
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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.