Finding the Fourth Proportional to 361.13, 541.70 and 117.68
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Solution
The fourth proportional to 361.13, 541.70 and 117.68 is: 176.51
Step by Step Solution
- Step 1: Write the proportion equation
361.13 : 541.70 = 117.68 : x - Step 2: Convert to fraction form
361.13/541.70 = 117.68/x - Step 3: Cross multiply
361.13x = 541.70 × 117.68 - Step 4: Simplify right side
361.13x = 63,743.96 - Step 5: Solve for x
x = 63,743.96/361.13 - Step 6: Final answer
x = 176.51
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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.