Finding the Fourth Proportional to 197,721.56, 272,854.50 and 107,076.08
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Solution
The fourth proportional to 197,721.56, 272,854.50 and 107,076.08 is: 147,764.31
Step by Step Solution
- Step 1: Write the proportion equation
197,721.56 : 272,854.50 = 107,076.08 : x - Step 2: Convert to fraction form
197,721.56/272,854.50 = 107,076.08/x - Step 3: Cross multiply
197,721.56x = 272,854.50 × 107,076.08 - Step 4: Simplify right side
197,721.56x = 29,216,190,270.36 - Step 5: Solve for x
x = 29,216,190,270.36/197,721.56 - Step 6: Final answer
x = 147,764.31
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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.