Finding the Fourth Proportional to 437.70, 656.67 and 129.67
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Solution
The fourth proportional to 437.70, 656.67 and 129.67 is: 194.54
Step by Step Solution
- Step 1: Write the proportion equation
437.70 : 656.67 = 129.67 : x - Step 2: Convert to fraction form
437.70/656.67 = 129.67/x - Step 3: Cross multiply
437.70x = 656.67 × 129.67 - Step 4: Simplify right side
437.70x = 85,149.24 - Step 5: Solve for x
x = 85,149.24/437.70 - Step 6: Final answer
x = 194.54
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.