Finding the Fourth Proportional to 297.30, 409.98 and 252.99
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Solution
The fourth proportional to 297.30, 409.98 and 252.99 is: 348.88
Step by Step Solution
- Step 1: Write the proportion equation
297.30 : 409.98 = 252.99 : x - Step 2: Convert to fraction form
297.30/409.98 = 252.99/x - Step 3: Cross multiply
297.30x = 409.98 × 252.99 - Step 4: Simplify right side
297.30x = 103,720.84 - Step 5: Solve for x
x = 103,720.84/297.30 - Step 6: Final answer
x = 348.88
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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.