Finding the Fourth Proportional to 379.44, 569.14 and 122.94
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Solution
The fourth proportional to 379.44, 569.14 and 122.94 is: 184.40
Step by Step Solution
- Step 1: Write the proportion equation
379.44 : 569.14 = 122.94 : x - Step 2: Convert to fraction form
379.44/569.14 = 122.94/x - Step 3: Cross multiply
379.44x = 569.14 × 122.94 - Step 4: Simplify right side
379.44x = 69,970.07 - Step 5: Solve for x
x = 69,970.07/379.44 - Step 6: Final answer
x = 184.40
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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.