Finding the Fourth Proportional to 388,670.88, 536,367.60 and 218,907.84
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Solution
The fourth proportional to 388,670.88, 536,367.60 and 218,907.84 is: 302,093.82
Step by Step Solution
- Step 1: Write the proportion equation
388,670.88 : 536,367.60 = 218,907.84 : x - Step 2: Convert to fraction form
388,670.88/536,367.60 = 218,907.84/x - Step 3: Cross multiply
388,670.88x = 536,367.60 × 218,907.84 - Step 4: Simplify right side
388,670.88x = 117,415,072,761.98 - Step 5: Solve for x
x = 117,415,072,761.98/388,670.88 - Step 6: Final answer
x = 302,093.82
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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.