Finding the Fourth Proportional to 438.14, 657.36 and 194.63
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Solution
The fourth proportional to 438.14, 657.36 and 194.63 is: 292.01
Step by Step Solution
- Step 1: Write the proportion equation
438.14 : 657.36 = 194.63 : x - Step 2: Convert to fraction form
438.14/657.36 = 194.63/x - Step 3: Cross multiply
438.14x = 657.36 × 194.63 - Step 4: Simplify right side
438.14x = 127,941.98 - Step 5: Solve for x
x = 127,941.98/438.14 - Step 6: Final answer
x = 292.01
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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.