Finding the Fourth Proportional to 395,110.75, 545,252.79 and 213,822.68
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Solution
The fourth proportional to 395,110.75, 545,252.79 and 213,822.68 is: 295,075.27
Step by Step Solution
- Step 1: Write the proportion equation
395,110.75 : 545,252.79 = 213,822.68 : x - Step 2: Convert to fraction form
395,110.75/545,252.79 = 213,822.68/x - Step 3: Cross multiply
395,110.75x = 545,252.79 × 213,822.68 - Step 4: Simplify right side
395,110.75x = 116,587,410,109.01 - Step 5: Solve for x
x = 116,587,410,109.01/395,110.75 - Step 6: Final answer
x = 295,075.27
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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.