Finding the Fourth Proportional to 306.94, 423.36 and 201.99
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Solution
The fourth proportional to 306.94, 423.36 and 201.99 is: 278.61
Step by Step Solution
- Step 1: Write the proportion equation
306.94 : 423.36 = 201.99 : x - Step 2: Convert to fraction form
306.94/423.36 = 201.99/x - Step 3: Cross multiply
306.94x = 423.36 × 201.99 - Step 4: Simplify right side
306.94x = 85,516.07 - Step 5: Solve for x
x = 85,516.07/306.94 - Step 6: Final answer
x = 278.61
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.