Finding the Fourth Proportional to 197,736.40, 272,875.80 and 107,092.09
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Solution
The fourth proportional to 197,736.40, 272,875.80 and 107,092.09 is: 147,786.85
Step by Step Solution
- Step 1: Write the proportion equation
197,736.40 : 272,875.80 = 107,092.09 : x - Step 2: Convert to fraction form
197,736.40/272,875.80 = 107,092.09/x - Step 3: Cross multiply
197,736.40x = 272,875.80 × 107,092.09 - Step 4: Simplify right side
197,736.40x = 29,222,839,050.23 - Step 5: Solve for x
x = 29,222,839,050.23/197,736.40 - Step 6: Final answer
x = 147,786.85
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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.