Finding the Fourth Proportional to 286.15, 430.19 and 226.01
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Solution
The fourth proportional to 286.15, 430.19 and 226.01 is: 339.78
Step by Step Solution
- Step 1: Write the proportion equation
286.15 : 430.19 = 226.01 : x - Step 2: Convert to fraction form
286.15/430.19 = 226.01/x - Step 3: Cross multiply
286.15x = 430.19 × 226.01 - Step 4: Simplify right side
286.15x = 97,227.24 - Step 5: Solve for x
x = 97,227.24/286.15 - Step 6: Final answer
x = 339.78
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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.