Finding the Fourth Proportional to 361.88, 541.55 and 313.70
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Solution
The fourth proportional to 361.88, 541.55 and 313.70 is: 469.45
Step by Step Solution
- Step 1: Write the proportion equation
361.88 : 541.55 = 313.70 : x - Step 2: Convert to fraction form
361.88/541.55 = 313.70/x - Step 3: Cross multiply
361.88x = 541.55 × 313.70 - Step 4: Simplify right side
361.88x = 169,884.24 - Step 5: Solve for x
x = 169,884.24/361.88 - Step 6: Final answer
x = 469.45
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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.