Finding the Fourth Proportional to 319.91, 441.14 and 214.99
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Solution
The fourth proportional to 319.91, 441.14 and 214.99 is: 296.46
Step by Step Solution
- Step 1: Write the proportion equation
319.91 : 441.14 = 214.99 : x - Step 2: Convert to fraction form
319.91/441.14 = 214.99/x - Step 3: Cross multiply
319.91x = 441.14 × 214.99 - Step 4: Simplify right side
319.91x = 94,838.51 - Step 5: Solve for x
x = 94,838.51/319.91 - Step 6: Final answer
x = 296.46
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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.