Finding the Fourth Proportional to 319,729.06, 441,229.74 and 176,489.17
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Solution
The fourth proportional to 319,729.06, 441,229.74 and 176,489.17 is: 243,557.06
Step by Step Solution
- Step 1: Write the proportion equation
319,729.06 : 441,229.74 = 176,489.17 : x - Step 2: Convert to fraction form
319,729.06/441,229.74 = 176,489.17/x - Step 3: Cross multiply
319,729.06x = 441,229.74 × 176,489.17 - Step 4: Simplify right side
319,729.06x = 77,872,270,591.92 - Step 5: Solve for x
x = 77,872,270,591.92/319,729.06 - Step 6: Final answer
x = 243,557.06
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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.