Finding the Fourth Proportional to 235.52, 325.08 and 157.76
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Solution
The fourth proportional to 235.52, 325.08 and 157.76 is: 217.75
Step by Step Solution
- Step 1: Write the proportion equation
235.52 : 325.08 = 157.76 : x - Step 2: Convert to fraction form
235.52/325.08 = 157.76/x - Step 3: Cross multiply
235.52x = 325.08 × 157.76 - Step 4: Simplify right side
235.52x = 51,284.62 - Step 5: Solve for x
x = 51,284.62/235.52 - Step 6: Final answer
x = 217.75
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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.