Finding the Fourth Proportional to 361.65, 542.42 and 207.07
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Solution
The fourth proportional to 361.65, 542.42 and 207.07 is: 310.57
Step by Step Solution
- Step 1: Write the proportion equation
361.65 : 542.42 = 207.07 : x - Step 2: Convert to fraction form
361.65/542.42 = 207.07/x - Step 3: Cross multiply
361.65x = 542.42 × 207.07 - Step 4: Simplify right side
361.65x = 112,318.91 - Step 5: Solve for x
x = 112,318.91/361.65 - Step 6: Final answer
x = 310.57
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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.