Finding the Fourth Proportional to 269.51, 371.99 and 158.99
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Solution
The fourth proportional to 269.51, 371.99 and 158.99 is: 219.45
Step by Step Solution
- Step 1: Write the proportion equation
269.51 : 371.99 = 158.99 : x - Step 2: Convert to fraction form
269.51/371.99 = 158.99/x - Step 3: Cross multiply
269.51x = 371.99 × 158.99 - Step 4: Simplify right side
269.51x = 59,142.69 - Step 5: Solve for x
x = 59,142.69/269.51 - Step 6: Final answer
x = 219.45
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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.