Finding the Fourth Proportional to 235.68, 325.08 and 157.92
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Solution
The fourth proportional to 235.68, 325.08 and 157.92 is: 217.82
Step by Step Solution
- Step 1: Write the proportion equation
235.68 : 325.08 = 157.92 : x - Step 2: Convert to fraction form
235.68/325.08 = 157.92/x - Step 3: Cross multiply
235.68x = 325.08 × 157.92 - Step 4: Simplify right side
235.68x = 51,336.63 - Step 5: Solve for x
x = 51,336.63/235.68 - Step 6: Final answer
x = 217.82
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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.