Finding the Fourth Proportional to 239.94, 358.11 and 216.99
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Solution
The fourth proportional to 239.94, 358.11 and 216.99 is: 323.86
Step by Step Solution
- Step 1: Write the proportion equation
239.94 : 358.11 = 216.99 : x - Step 2: Convert to fraction form
239.94/358.11 = 216.99/x - Step 3: Cross multiply
239.94x = 358.11 × 216.99 - Step 4: Simplify right side
239.94x = 77,706.29 - Step 5: Solve for x
x = 77,706.29/239.94 - Step 6: Final answer
x = 323.86
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.