Finding the Fourth Proportional to 212.26, 292.95 and 124.93
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Solution
The fourth proportional to 212.26, 292.95 and 124.93 is: 172.42
Step by Step Solution
- Step 1: Write the proportion equation
212.26 : 292.95 = 124.93 : x - Step 2: Convert to fraction form
212.26/292.95 = 124.93/x - Step 3: Cross multiply
212.26x = 292.95 × 124.93 - Step 4: Simplify right side
212.26x = 36,598.24 - Step 5: Solve for x
x = 36,598.24/212.26 - Step 6: Final answer
x = 172.42
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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.