Finding the Fourth Proportional to 437.63, 656.31 and 149
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Solution
The fourth proportional to 437.63, 656.31 and 149 is: 223.45
Step by Step Solution
- Step 1: Write the proportion equation
437.63 : 656.31 = 149 : x - Step 2: Convert to fraction form
437.63/656.31 = 149/x - Step 3: Cross multiply
437.63x = 656.31 × 149 - Step 4: Simplify right side
437.63x = 97,790.19 - Step 5: Solve for x
x = 97,790.19/437.63 - Step 6: Final answer
x = 223.45
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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.