Finding the Fourth Proportional to 330.23, 494.99 and 214.76
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Solution
The fourth proportional to 330.23, 494.99 and 214.76 is: 321.90
Step by Step Solution
- Step 1: Write the proportion equation
330.23 : 494.99 = 214.76 : x - Step 2: Convert to fraction form
330.23/494.99 = 214.76/x - Step 3: Cross multiply
330.23x = 494.99 × 214.76 - Step 4: Simplify right side
330.23x = 106,301.63 - Step 5: Solve for x
x = 106,301.63/330.23 - Step 6: Final answer
x = 321.90
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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.