Finding the Fourth Proportional to 613,516.91, 920,324.57 and 214,148.84
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Solution
The fourth proportional to 613,516.91, 920,324.57 and 214,148.84 is: 321,240.43
Step by Step Solution
- Step 1: Write the proportion equation
613,516.91 : 920,324.57 = 214,148.84 : x - Step 2: Convert to fraction form
613,516.91/920,324.57 = 214,148.84/x - Step 3: Cross multiply
613,516.91x = 920,324.57 × 214,148.84 - Step 4: Simplify right side
613,516.91x = 197,086,433,416.63 - Step 5: Solve for x
x = 197,086,433,416.63/613,516.91 - Step 6: Final answer
x = 321,240.43
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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.