Finding the Fourth Proportional to 235.55, 353.30 and 137.99
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Solution
The fourth proportional to 235.55, 353.30 and 137.99 is: 206.97
Step by Step Solution
- Step 1: Write the proportion equation
235.55 : 353.30 = 137.99 : x - Step 2: Convert to fraction form
235.55/353.30 = 137.99/x - Step 3: Cross multiply
235.55x = 353.30 × 137.99 - Step 4: Simplify right side
235.55x = 48,751.87 - Step 5: Solve for x
x = 48,751.87/235.55 - Step 6: Final answer
x = 206.97
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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.