Finding the Fourth Proportional to 197,639.44, 272,739.72 and 108,215.44
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Solution
The fourth proportional to 197,639.44, 272,739.72 and 108,215.44 is: 149,335.82
Step by Step Solution
- Step 1: Write the proportion equation
197,639.44 : 272,739.72 = 108,215.44 : x - Step 2: Convert to fraction form
197,639.44/272,739.72 = 108,215.44/x - Step 3: Cross multiply
197,639.44x = 272,739.72 × 108,215.44 - Step 4: Simplify right side
197,639.44x = 29,514,648,805.28 - Step 5: Solve for x
x = 29,514,648,805.28/197,639.44 - Step 6: Final answer
x = 149,335.82
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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.