Finding the Fourth Proportional to 239.93, 330.99 and 230.61
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Solution
The fourth proportional to 239.93, 330.99 and 230.61 is: 318.14
Step by Step Solution
- Step 1: Write the proportion equation
239.93 : 330.99 = 230.61 : x - Step 2: Convert to fraction form
239.93/330.99 = 230.61/x - Step 3: Cross multiply
239.93x = 330.99 × 230.61 - Step 4: Simplify right side
239.93x = 76,329.98 - Step 5: Solve for x
x = 76,329.98/239.93 - Step 6: Final answer
x = 318.14
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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.