Finding the Fourth Proportional to 422.49, 583.05 and 235.99
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Solution
The fourth proportional to 422.49, 583.05 and 235.99 is: 325.67
Step by Step Solution
- Step 1: Write the proportion equation
422.49 : 583.05 = 235.99 : x - Step 2: Convert to fraction form
422.49/583.05 = 235.99/x - Step 3: Cross multiply
422.49x = 583.05 × 235.99 - Step 4: Simplify right side
422.49x = 137,593.97 - Step 5: Solve for x
x = 137,593.97/422.49 - Step 6: Final answer
x = 325.67
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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.