Finding the Fourth Proportional to 286.97, 430.13 and 149.99
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Solution
The fourth proportional to 286.97, 430.13 and 149.99 is: 224.81
Step by Step Solution
- Step 1: Write the proportion equation
286.97 : 430.13 = 149.99 : x - Step 2: Convert to fraction form
286.97/430.13 = 149.99/x - Step 3: Cross multiply
286.97x = 430.13 × 149.99 - Step 4: Simplify right side
286.97x = 64,512.30 - Step 5: Solve for x
x = 64,512.30/286.97 - Step 6: Final answer
x = 224.81
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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.