Finding the Fourth Proportional to 197,286.45, 272,257.29 and 106,644.12
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Solution
The fourth proportional to 197,286.45, 272,257.29 and 106,644.12 is: 147,169.96
Step by Step Solution
- Step 1: Write the proportion equation
197,286.45 : 272,257.29 = 106,644.12 : x - Step 2: Convert to fraction form
197,286.45/272,257.29 = 106,644.12/x - Step 3: Cross multiply
197,286.45x = 272,257.29 × 106,644.12 - Step 4: Simplify right side
197,286.45x = 29,034,639,105.63 - Step 5: Solve for x
x = 29,034,639,105.63/197,286.45 - Step 6: Final answer
x = 147,169.96
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1.5x scale
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.