Finding the Fourth Proportional to 286.73, 430.26 and 124.55
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Solution
The fourth proportional to 286.73, 430.26 and 124.55 is: 186.89
Step by Step Solution
- Step 1: Write the proportion equation
286.73 : 430.26 = 124.55 : x - Step 2: Convert to fraction form
286.73/430.26 = 124.55/x - Step 3: Cross multiply
286.73x = 430.26 × 124.55 - Step 4: Simplify right side
286.73x = 53,588.26 - Step 5: Solve for x
x = 53,588.26/286.73 - Step 6: Final answer
x = 186.89
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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.