Finding the Fourth Proportional to 286.93, 430.67 and 132.96
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Solution
The fourth proportional to 286.93, 430.67 and 132.96 is: 199.57
Step by Step Solution
- Step 1: Write the proportion equation
286.93 : 430.67 = 132.96 : x - Step 2: Convert to fraction form
286.93/430.67 = 132.96/x - Step 3: Cross multiply
286.93x = 430.67 × 132.96 - Step 4: Simplify right side
286.93x = 57,261.88 - Step 5: Solve for x
x = 57,261.88/286.93 - Step 6: Final answer
x = 199.57
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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.