Finding the Fourth Proportional to 371.70, 511.74 and 316.44
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Solution
The fourth proportional to 371.70, 511.74 and 316.44 is: 435.66
Step by Step Solution
- Step 1: Write the proportion equation
371.70 : 511.74 = 316.44 : x - Step 2: Convert to fraction form
371.70/511.74 = 316.44/x - Step 3: Cross multiply
371.70x = 511.74 × 316.44 - Step 4: Simplify right side
371.70x = 161,935.01 - Step 5: Solve for x
x = 161,935.01/371.70 - Step 6: Final answer
x = 435.66
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.