Finding the Fourth Proportional to 319,231.26, 478,523.70 and 206,982.54
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Solution
The fourth proportional to 319,231.26, 478,523.70 and 206,982.54 is: 310,264.26
Step by Step Solution
- Step 1: Write the proportion equation
319,231.26 : 478,523.70 = 206,982.54 : x - Step 2: Convert to fraction form
319,231.26/478,523.70 = 206,982.54/x - Step 3: Cross multiply
319,231.26x = 478,523.70 × 206,982.54 - Step 4: Simplify right side
319,231.26x = 99,046,050,876.20 - Step 5: Solve for x
x = 99,046,050,876.20/319,231.26 - Step 6: Final answer
x = 310,264.26
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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.