Finding the Fourth Proportional to 353.14, 487.18 and 236.74
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Solution
The fourth proportional to 353.14, 487.18 and 236.74 is: 326.60
Step by Step Solution
- Step 1: Write the proportion equation
353.14 : 487.18 = 236.74 : x - Step 2: Convert to fraction form
353.14/487.18 = 236.74/x - Step 3: Cross multiply
353.14x = 487.18 × 236.74 - Step 4: Simplify right side
353.14x = 115,334.99 - Step 5: Solve for x
x = 115,334.99/353.14 - Step 6: Final answer
x = 326.60
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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.