Finding the Fourth Proportional to 724.70, 1,087.19 and 237.75
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Solution
The fourth proportional to 724.70, 1,087.19 and 237.75 is: 356.67
Step by Step Solution
- Step 1: Write the proportion equation
724.70 : 1,087.19 = 237.75 : x - Step 2: Convert to fraction form
724.70/1,087.19 = 237.75/x - Step 3: Cross multiply
724.70x = 1,087.19 × 237.75 - Step 4: Simplify right side
724.70x = 258,478.23 - Step 5: Solve for x
x = 258,478.23/724.70 - Step 6: Final answer
x = 356.67
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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.