Finding the Fourth Proportional to 231,749.44, 319,787.79 and 129,760.72
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Solution
The fourth proportional to 231,749.44, 319,787.79 and 129,760.72 is: 179,054.99
Step by Step Solution
- Step 1: Write the proportion equation
231,749.44 : 319,787.79 = 129,760.72 : x - Step 2: Convert to fraction form
231,749.44/319,787.79 = 129,760.72/x - Step 3: Cross multiply
231,749.44x = 319,787.79 × 129,760.72 - Step 4: Simplify right side
231,749.44x = 41,495,893,877.61 - Step 5: Solve for x
x = 41,495,893,877.61/231,749.44 - Step 6: Final answer
x = 179,054.99
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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.