Finding the Fourth Proportional to 197,245.71, 272,132.60 and 112,302.63
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Solution
The fourth proportional to 197,245.71, 272,132.60 and 112,302.63 is: 154,939.78
Step by Step Solution
- Step 1: Write the proportion equation
197,245.71 : 272,132.60 = 112,302.63 : x - Step 2: Convert to fraction form
197,245.71/272,132.60 = 112,302.63/x - Step 3: Cross multiply
197,245.71x = 272,132.60 × 112,302.63 - Step 4: Simplify right side
197,245.71x = 30,561,206,127.22 - Step 5: Solve for x
x = 30,561,206,127.22/197,245.71 - Step 6: Final answer
x = 154,939.78
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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.