Finding the Fourth Proportional to 381.18, 525.91 and 233.66
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Solution
The fourth proportional to 381.18, 525.91 and 233.66 is: 322.38
Step by Step Solution
- Step 1: Write the proportion equation
381.18 : 525.91 = 233.66 : x - Step 2: Convert to fraction form
381.18/525.91 = 233.66/x - Step 3: Cross multiply
381.18x = 525.91 × 233.66 - Step 4: Simplify right side
381.18x = 122,884.13 - Step 5: Solve for x
x = 122,884.13/381.18 - Step 6: Final answer
x = 322.38
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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.