Finding the Fourth Proportional to 292.68, 438.93 and 76.23
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Solution
The fourth proportional to 292.68, 438.93 and 76.23 is: 114.32
Step by Step Solution
- Step 1: Write the proportion equation
292.68 : 438.93 = 76.23 : x - Step 2: Convert to fraction form
292.68/438.93 = 76.23/x - Step 3: Cross multiply
292.68x = 438.93 × 76.23 - Step 4: Simplify right side
292.68x = 33,459.63 - Step 5: Solve for x
x = 33,459.63/292.68 - Step 6: Final answer
x = 114.32
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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.