Finding the Fourth Proportional to 286.66, 430.70 and 183.99
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Solution
The fourth proportional to 286.66, 430.70 and 183.99 is: 276.44
Step by Step Solution
- Step 1: Write the proportion equation
286.66 : 430.70 = 183.99 : x - Step 2: Convert to fraction form
286.66/430.70 = 183.99/x - Step 3: Cross multiply
286.66x = 430.70 × 183.99 - Step 4: Simplify right side
286.66x = 79,244.49 - Step 5: Solve for x
x = 79,244.49/286.66 - Step 6: Final answer
x = 276.44
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.