Finding the Fourth Proportional to 414.24, 621.26 and 125.70
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Solution
The fourth proportional to 414.24, 621.26 and 125.70 is: 188.52
Step by Step Solution
- Step 1: Write the proportion equation
414.24 : 621.26 = 125.70 : x - Step 2: Convert to fraction form
414.24/621.26 = 125.70/x - Step 3: Cross multiply
414.24x = 621.26 × 125.70 - Step 4: Simplify right side
414.24x = 78,092.38 - Step 5: Solve for x
x = 78,092.38/414.24 - Step 6: Final answer
x = 188.52
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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.