Finding the Fourth Proportional to 197,723.82, 272,857.44 and 107,077.70
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Solution
The fourth proportional to 197,723.82, 272,857.44 and 107,077.70 is: 147,766.45
Step by Step Solution
- Step 1: Write the proportion equation
197,723.82 : 272,857.44 = 107,077.70 : x - Step 2: Convert to fraction form
197,723.82/272,857.44 = 107,077.70/x - Step 3: Cross multiply
197,723.82x = 272,857.44 × 107,077.70 - Step 4: Simplify right side
197,723.82x = 29,216,947,103.09 - Step 5: Solve for x
x = 29,216,947,103.09/197,723.82 - Step 6: Final answer
x = 147,766.45
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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.