Finding the Fourth Proportional to 356.78, 535.25 and 113.31
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Solution
The fourth proportional to 356.78, 535.25 and 113.31 is: 169.99
Step by Step Solution
- Step 1: Write the proportion equation
356.78 : 535.25 = 113.31 : x - Step 2: Convert to fraction form
356.78/535.25 = 113.31/x - Step 3: Cross multiply
356.78x = 535.25 × 113.31 - Step 4: Simplify right side
356.78x = 60,649.46 - Step 5: Solve for x
x = 60,649.46/356.78 - Step 6: Final answer
x = 169.99
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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.