Finding the Fourth Proportional to 356.32, 491.74 and 201.08
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Solution
The fourth proportional to 356.32, 491.74 and 201.08 is: 277.50
Step by Step Solution
- Step 1: Write the proportion equation
356.32 : 491.74 = 201.08 : x - Step 2: Convert to fraction form
356.32/491.74 = 201.08/x - Step 3: Cross multiply
356.32x = 491.74 × 201.08 - Step 4: Simplify right side
356.32x = 98,879.08 - Step 5: Solve for x
x = 98,879.08/356.32 - Step 6: Final answer
x = 277.50
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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.