Finding the Fourth Proportional to 197,322.97, 272,396.79 and 115,639.94
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Solution
The fourth proportional to 197,322.97, 272,396.79 and 115,639.94 is: 159,636.50
Step by Step Solution
- Step 1: Write the proportion equation
197,322.97 : 272,396.79 = 115,639.94 : x - Step 2: Convert to fraction form
197,322.97/272,396.79 = 115,639.94/x - Step 3: Cross multiply
197,322.97x = 272,396.79 × 115,639.94 - Step 4: Simplify right side
197,322.97x = 31,499,948,451.79 - Step 5: Solve for x
x = 31,499,948,451.79/197,322.97 - Step 6: Final answer
x = 159,636.50
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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.