Finding the Fourth Proportional to 418.70, 577.79 and 232.18
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Solution
The fourth proportional to 418.70, 577.79 and 232.18 is: 320.39
Step by Step Solution
- Step 1: Write the proportion equation
418.70 : 577.79 = 232.18 : x - Step 2: Convert to fraction form
418.70/577.79 = 232.18/x - Step 3: Cross multiply
418.70x = 577.79 × 232.18 - Step 4: Simplify right side
418.70x = 134,147.23 - Step 5: Solve for x
x = 134,147.23/418.70 - Step 6: Final answer
x = 320.39
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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.