Finding the Fourth Proportional to 291.99, 402.35 and 271.49
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Solution
The fourth proportional to 291.99, 402.35 and 271.49 is: 374.09
Step by Step Solution
- Step 1: Write the proportion equation
291.99 : 402.35 = 271.49 : x - Step 2: Convert to fraction form
291.99/402.35 = 271.49/x - Step 3: Cross multiply
291.99x = 402.35 × 271.49 - Step 4: Simplify right side
291.99x = 109,230.63 - Step 5: Solve for x
x = 109,230.63/291.99 - Step 6: Final answer
x = 374.09
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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.