Finding the Fourth Proportional to 319.84, 441.09 and 270.82
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Solution
The fourth proportional to 319.84, 441.09 and 270.82 is: 373.49
Step by Step Solution
- Step 1: Write the proportion equation
319.84 : 441.09 = 270.82 : x - Step 2: Convert to fraction form
319.84/441.09 = 270.82/x - Step 3: Cross multiply
319.84x = 441.09 × 270.82 - Step 4: Simplify right side
319.84x = 119,455.99 - Step 5: Solve for x
x = 119,455.99/319.84 - Step 6: Final answer
x = 373.49
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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.