Finding the Fourth Proportional to 397,488.36, 548,523.18 and 225,437.88
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Solution
The fourth proportional to 397,488.36, 548,523.18 and 225,437.88 is: 311,098.17
Step by Step Solution
- Step 1: Write the proportion equation
397,488.36 : 548,523.18 = 225,437.88 : x - Step 2: Convert to fraction form
397,488.36/548,523.18 = 225,437.88/x - Step 3: Cross multiply
397,488.36x = 548,523.18 × 225,437.88 - Step 4: Simplify right side
397,488.36x = 123,657,902,830.06 - Step 5: Solve for x
x = 123,657,902,830.06/397,488.36 - Step 6: Final answer
x = 311,098.17
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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.