Finding the Fourth Proportional to 319,723.68, 441,141.36 and 204,949.92
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Solution
The fourth proportional to 319,723.68, 441,141.36 and 204,949.92 is: 282,781.33
Step by Step Solution
- Step 1: Write the proportion equation
319,723.68 : 441,141.36 = 204,949.92 : x - Step 2: Convert to fraction form
319,723.68/441,141.36 = 204,949.92/x - Step 3: Cross multiply
319,723.68x = 441,141.36 × 204,949.92 - Step 4: Simplify right side
319,723.68x = 90,411,886,440.69 - Step 5: Solve for x
x = 90,411,886,440.69/319,723.68 - Step 6: Final answer
x = 282,781.33
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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.