Finding the Fourth Proportional to 414.31, 621.09 and 157.99
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Solution
The fourth proportional to 414.31, 621.09 and 157.99 is: 236.84
Step by Step Solution
- Step 1: Write the proportion equation
414.31 : 621.09 = 157.99 : x - Step 2: Convert to fraction form
414.31/621.09 = 157.99/x - Step 3: Cross multiply
414.31x = 621.09 × 157.99 - Step 4: Simplify right side
414.31x = 98,126.01 - Step 5: Solve for x
x = 98,126.01/414.31 - Step 6: Final answer
x = 236.84
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.