Finding the Fourth Proportional to 305.81, 458.36 and 122.99
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Solution
The fourth proportional to 305.81, 458.36 and 122.99 is: 184.33
Step by Step Solution
- Step 1: Write the proportion equation
305.81 : 458.36 = 122.99 : x - Step 2: Convert to fraction form
305.81/458.36 = 122.99/x - Step 3: Cross multiply
305.81x = 458.36 × 122.99 - Step 4: Simplify right side
305.81x = 56,371.25 - Step 5: Solve for x
x = 56,371.25/305.81 - Step 6: Final answer
x = 184.33
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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.