Finding the Fourth Proportional to 272.01, 407.70 and 207.75
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Solution
The fourth proportional to 272.01, 407.70 and 207.75 is: 311.38
Step by Step Solution
- Step 1: Write the proportion equation
272.01 : 407.70 = 207.75 : x - Step 2: Convert to fraction form
272.01/407.70 = 207.75/x - Step 3: Cross multiply
272.01x = 407.70 × 207.75 - Step 4: Simplify right side
272.01x = 84,699.68 - Step 5: Solve for x
x = 84,699.68/272.01 - Step 6: Final answer
x = 311.38
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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.