Finding the Fourth Proportional to 418.09, 576.99 and 243.46
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Solution
The fourth proportional to 418.09, 576.99 and 243.46 is: 335.99
Step by Step Solution
- Step 1: Write the proportion equation
418.09 : 576.99 = 243.46 : x - Step 2: Convert to fraction form
418.09/576.99 = 243.46/x - Step 3: Cross multiply
418.09x = 576.99 × 243.46 - Step 4: Simplify right side
418.09x = 140,473.99 - Step 5: Solve for x
x = 140,473.99/418.09 - Step 6: Final answer
x = 335.99
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.