Finding the Fourth Proportional to 292.93, 438.99 and 211.39
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Solution
The fourth proportional to 292.93, 438.99 and 211.39 is: 316.79
Step by Step Solution
- Step 1: Write the proportion equation
292.93 : 438.99 = 211.39 : x - Step 2: Convert to fraction form
292.93/438.99 = 211.39/x - Step 3: Cross multiply
292.93x = 438.99 × 211.39 - Step 4: Simplify right side
292.93x = 92,798.10 - Step 5: Solve for x
x = 92,798.10/292.93 - Step 6: Final answer
x = 316.79
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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.