Finding the Fourth Proportional to 202.28, 280.58 and 194.99
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Solution
The fourth proportional to 202.28, 280.58 and 194.99 is: 270.47
Step by Step Solution
- Step 1: Write the proportion equation
202.28 : 280.58 = 194.99 : x - Step 2: Convert to fraction form
202.28/280.58 = 194.99/x - Step 3: Cross multiply
202.28x = 280.58 × 194.99 - Step 4: Simplify right side
202.28x = 54,710.29 - Step 5: Solve for x
x = 54,710.29/202.28 - Step 6: Final answer
x = 270.47
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Why These Related Problems?
These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.