Finding the Fourth Proportional to 371.14, 511.14 and 331.63
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Solution
The fourth proportional to 371.14, 511.14 and 331.63 is: 456.73
Step by Step Solution
- Step 1: Write the proportion equation
371.14 : 511.14 = 331.63 : x - Step 2: Convert to fraction form
371.14/511.14 = 331.63/x - Step 3: Cross multiply
371.14x = 511.14 × 331.63 - Step 4: Simplify right side
371.14x = 169,509.36 - Step 5: Solve for x
x = 169,509.36/371.14 - Step 6: Final answer
x = 456.73
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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.