Finding the Fourth Proportional to 437.10, 655.65 and 193.70
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Solution
The fourth proportional to 437.10, 655.65 and 193.70 is: 290.54
Step by Step Solution
- Step 1: Write the proportion equation
437.10 : 655.65 = 193.70 : x - Step 2: Convert to fraction form
437.10/655.65 = 193.70/x - Step 3: Cross multiply
437.10x = 655.65 × 193.70 - Step 4: Simplify right side
437.10x = 126,996.13 - Step 5: Solve for x
x = 126,996.13/437.10 - Step 6: Final answer
x = 290.54
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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.