Finding the Fourth Proportional to 286.94, 430.99 and 226.53
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Solution
The fourth proportional to 286.94, 430.99 and 226.53 is: 340.25
Step by Step Solution
- Step 1: Write the proportion equation
286.94 : 430.99 = 226.53 : x - Step 2: Convert to fraction form
286.94/430.99 = 226.53/x - Step 3: Cross multiply
286.94x = 430.99 × 226.53 - Step 4: Simplify right side
286.94x = 97,631.60 - Step 5: Solve for x
x = 97,631.60/286.94 - Step 6: Final answer
x = 340.25
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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.