Finding the Fourth Proportional to 392.01, 540.97 and 214.97
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Solution
The fourth proportional to 392.01, 540.97 and 214.97 is: 296.65
Step by Step Solution
- Step 1: Write the proportion equation
392.01 : 540.97 = 214.97 : x - Step 2: Convert to fraction form
392.01/540.97 = 214.97/x - Step 3: Cross multiply
392.01x = 540.97 × 214.97 - Step 4: Simplify right side
392.01x = 116,289.08 - Step 5: Solve for x
x = 116,289.08/392.01 - Step 6: Final answer
x = 296.65
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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.