Finding the Fourth Proportional to 330.31, 455.84 and 214.08
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Solution
The fourth proportional to 330.31, 455.84 and 214.08 is: 295.44
Step by Step Solution
- Step 1: Write the proportion equation
330.31 : 455.84 = 214.08 : x - Step 2: Convert to fraction form
330.31/455.84 = 214.08/x - Step 3: Cross multiply
330.31x = 455.84 × 214.08 - Step 4: Simplify right side
330.31x = 97,586.23 - Step 5: Solve for x
x = 97,586.23/330.31 - Step 6: Final answer
x = 295.44
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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.