Finding the Fourth Proportional to 269.88, 372.40 and 186.99
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Solution
The fourth proportional to 269.88, 372.40 and 186.99 is: 258.02
Step by Step Solution
- Step 1: Write the proportion equation
269.88 : 372.40 = 186.99 : x - Step 2: Convert to fraction form
269.88/372.40 = 186.99/x - Step 3: Cross multiply
269.88x = 372.40 × 186.99 - Step 4: Simplify right side
269.88x = 69,635.08 - Step 5: Solve for x
x = 69,635.08/269.88 - Step 6: Final answer
x = 258.02
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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.