Finding the Fourth Proportional to 305.87, 421.99 and 201.02
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Solution
The fourth proportional to 305.87, 421.99 and 201.02 is: 277.33
Step by Step Solution
- Step 1: Write the proportion equation
305.87 : 421.99 = 201.02 : x - Step 2: Convert to fraction form
305.87/421.99 = 201.02/x - Step 3: Cross multiply
305.87x = 421.99 × 201.02 - Step 4: Simplify right side
305.87x = 84,826.87 - Step 5: Solve for x
x = 84,826.87/305.87 - Step 6: Final answer
x = 277.33
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.