Finding the Fourth Proportional to 292.99, 438.80 and 155.96
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Solution
The fourth proportional to 292.99, 438.80 and 155.96 is: 233.58
Step by Step Solution
- Step 1: Write the proportion equation
292.99 : 438.80 = 155.96 : x - Step 2: Convert to fraction form
292.99/438.80 = 155.96/x - Step 3: Cross multiply
292.99x = 438.80 × 155.96 - Step 4: Simplify right side
292.99x = 68,435.25 - Step 5: Solve for x
x = 68,435.25/292.99 - Step 6: Final answer
x = 233.58
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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.