Finding the Fourth Proportional to 395,625.60, 545,962.56 and 214,342.05
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Solution
The fourth proportional to 395,625.60, 545,962.56 and 214,342.05 is: 295,791.61
Step by Step Solution
- Step 1: Write the proportion equation
395,625.60 : 545,962.56 = 214,342.05 : x - Step 2: Convert to fraction form
395,625.60/545,962.56 = 214,342.05/x - Step 3: Cross multiply
395,625.60x = 545,962.56 × 214,342.05 - Step 4: Simplify right side
395,625.60x = 117,022,734,333.65 - Step 5: Solve for x
x = 117,022,734,333.65/395,625.60 - Step 6: Final answer
x = 295,791.61
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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.