Finding the Fourth Proportional to 319,042.60, 478,573.18 and 119,324.88
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Solution
The fourth proportional to 319,042.60, 478,573.18 and 119,324.88 is: 178,990.79
Step by Step Solution
- Step 1: Write the proportion equation
319,042.60 : 478,573.18 = 119,324.88 : x - Step 2: Convert to fraction form
319,042.60/478,573.18 = 119,324.88/x - Step 3: Cross multiply
319,042.60x = 478,573.18 × 119,324.88 - Step 4: Simplify right side
319,042.60x = 57,105,686,976.41 - Step 5: Solve for x
x = 57,105,686,976.41/319,042.60 - Step 6: Final answer
x = 178,990.79
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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.