Finding the Fourth Proportional to 438.73, 657.70 and 400.68
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Solution
The fourth proportional to 438.73, 657.70 and 400.68 is: 600.66
Step by Step Solution
- Step 1: Write the proportion equation
438.73 : 657.70 = 400.68 : x - Step 2: Convert to fraction form
438.73/657.70 = 400.68/x - Step 3: Cross multiply
438.73x = 657.70 × 400.68 - Step 4: Simplify right side
438.73x = 263,526.23 - Step 5: Solve for x
x = 263,526.23/438.73 - Step 6: Final answer
x = 600.66
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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.