Finding the Fourth Proportional to 423.96, 585.21 and 276.99
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Solution
The fourth proportional to 423.96, 585.21 and 276.99 is: 382.34
Step by Step Solution
- Step 1: Write the proportion equation
423.96 : 585.21 = 276.99 : x - Step 2: Convert to fraction form
423.96/585.21 = 276.99/x - Step 3: Cross multiply
423.96x = 585.21 × 276.99 - Step 4: Simplify right side
423.96x = 162,097.32 - Step 5: Solve for x
x = 162,097.32/423.96 - Step 6: Final answer
x = 382.34
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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.