Finding the Fourth Proportional to 319,680.81, 441,163.13 and 176,440.82
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Solution
The fourth proportional to 319,680.81, 441,163.13 and 176,440.82 is: 243,490.32
Step by Step Solution
- Step 1: Write the proportion equation
319,680.81 : 441,163.13 = 176,440.82 : x - Step 2: Convert to fraction form
319,680.81/441,163.13 = 176,440.82/x - Step 3: Cross multiply
319,680.81x = 441,163.13 × 176,440.82 - Step 4: Simplify right side
319,680.81x = 77,839,181,322.95 - Step 5: Solve for x
x = 77,839,181,322.95/319,680.81 - Step 6: Final answer
x = 243,490.32
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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.