Finding the Fourth Proportional to 197,660.20, 272,767.80 and 107,015.44
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Solution
The fourth proportional to 197,660.20, 272,767.80 and 107,015.44 is: 147,679.53
Step by Step Solution
- Step 1: Write the proportion equation
197,660.20 : 272,767.80 = 107,015.44 : x - Step 2: Convert to fraction form
197,660.20/272,767.80 = 107,015.44/x - Step 3: Cross multiply
197,660.20x = 272,767.80 × 107,015.44 - Step 4: Simplify right side
197,660.20x = 29,190,366,134.83 - Step 5: Solve for x
x = 29,190,366,134.83/197,660.20 - Step 6: Final answer
x = 147,679.53
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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.