Finding the Fourth Proportional to 329,378.64, 494,137.80 and 126,979.98
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Solution
The fourth proportional to 329,378.64, 494,137.80 and 126,979.98 is: 190,496.89
Step by Step Solution
- Step 1: Write the proportion equation
329,378.64 : 494,137.80 = 126,979.98 : x - Step 2: Convert to fraction form
329,378.64/494,137.80 = 126,979.98/x - Step 3: Cross multiply
329,378.64x = 494,137.80 × 126,979.98 - Step 4: Simplify right side
329,378.64x = 62,745,607,961.24 - Step 5: Solve for x
x = 62,745,607,961.24/329,378.64 - Step 6: Final answer
x = 190,496.89
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.