Finding the Fourth Proportional to 476.23, 657.28 and 277.18
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Solution
The fourth proportional to 476.23, 657.28 and 277.18 is: 382.55
Step by Step Solution
- Step 1: Write the proportion equation
476.23 : 657.28 = 277.18 : x - Step 2: Convert to fraction form
476.23/657.28 = 277.18/x - Step 3: Cross multiply
476.23x = 657.28 × 277.18 - Step 4: Simplify right side
476.23x = 182,183.23 - Step 5: Solve for x
x = 182,183.23/476.23 - Step 6: Final answer
x = 382.55
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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.