Finding the Fourth Proportional to 393,561.24, 543,120.78 and 214,713.24
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Solution
The fourth proportional to 393,561.24, 543,120.78 and 214,713.24 is: 296,307.69
Step by Step Solution
- Step 1: Write the proportion equation
393,561.24 : 543,120.78 = 214,713.24 : x - Step 2: Convert to fraction form
393,561.24/543,120.78 = 214,713.24/x - Step 3: Cross multiply
393,561.24x = 543,120.78 × 214,713.24 - Step 4: Simplify right side
393,561.24x = 116,615,222,385.13 - Step 5: Solve for x
x = 116,615,222,385.13/393,561.24 - Step 6: Final answer
x = 296,307.69
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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.