Finding the Fourth Proportional to 281.28, 420.93 and 237.84
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Solution
The fourth proportional to 281.28, 420.93 and 237.84 is: 355.92
Step by Step Solution
- Step 1: Write the proportion equation
281.28 : 420.93 = 237.84 : x - Step 2: Convert to fraction form
281.28/420.93 = 237.84/x - Step 3: Cross multiply
281.28x = 420.93 × 237.84 - Step 4: Simplify right side
281.28x = 100,113.99 - Step 5: Solve for x
x = 100,113.99/281.28 - Step 6: Final answer
x = 355.92
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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.