Finding the Fourth Proportional to 272.99, 409.15 and 207.48
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Solution
The fourth proportional to 272.99, 409.15 and 207.48 is: 310.97
Step by Step Solution
- Step 1: Write the proportion equation
272.99 : 409.15 = 207.48 : x - Step 2: Convert to fraction form
272.99/409.15 = 207.48/x - Step 3: Cross multiply
272.99x = 409.15 × 207.48 - Step 4: Simplify right side
272.99x = 84,889.92 - Step 5: Solve for x
x = 84,889.92/272.99 - Step 6: Final answer
x = 310.97
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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.