Finding the Fourth Proportional to 418.60, 577.68 and 232.09
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Solution
The fourth proportional to 418.60, 577.68 and 232.09 is: 320.28
Step by Step Solution
- Step 1: Write the proportion equation
418.60 : 577.68 = 232.09 : x - Step 2: Convert to fraction form
418.60/577.68 = 232.09/x - Step 3: Cross multiply
418.60x = 577.68 × 232.09 - Step 4: Simplify right side
418.60x = 134,071.44 - Step 5: Solve for x
x = 134,071.44/418.60 - Step 6: Final answer
x = 320.28
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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.