Finding the Fourth Proportional to 438.26, 657.32 and 177.99
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Solution
The fourth proportional to 438.26, 657.32 and 177.99 is: 266.96
Step by Step Solution
- Step 1: Write the proportion equation
438.26 : 657.32 = 177.99 : x - Step 2: Convert to fraction form
438.26/657.32 = 177.99/x - Step 3: Cross multiply
438.26x = 657.32 × 177.99 - Step 4: Simplify right side
438.26x = 116,996.83 - Step 5: Solve for x
x = 116,996.83/438.26 - Step 6: Final answer
x = 266.96
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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.