Finding the Fourth Proportional to 197,651.68, 272,759.42 and 107,007.66
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Solution
The fourth proportional to 197,651.68, 272,759.42 and 107,007.66 is: 147,670.63
Step by Step Solution
- Step 1: Write the proportion equation
197,651.68 : 272,759.42 = 107,007.66 : x - Step 2: Convert to fraction form
197,651.68/272,759.42 = 107,007.66/x - Step 3: Cross multiply
197,651.68x = 272,759.42 × 107,007.66 - Step 4: Simplify right side
197,651.68x = 29,187,347,277.16 - Step 5: Solve for x
x = 29,187,347,277.16/197,651.68 - Step 6: Final answer
x = 147,670.63
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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.