Finding the Fourth Proportional to 381.14, 525.95 and 233.79
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Solution
The fourth proportional to 381.14, 525.95 and 233.79 is: 322.62
Step by Step Solution
- Step 1: Write the proportion equation
381.14 : 525.95 = 233.79 : x - Step 2: Convert to fraction form
381.14/525.95 = 233.79/x - Step 3: Cross multiply
381.14x = 525.95 × 233.79 - Step 4: Simplify right side
381.14x = 122,960.68 - Step 5: Solve for x
x = 122,960.68/381.14 - Step 6: Final answer
x = 322.62
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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.