Finding the Fourth Proportional to 438.23, 656.99 and 164.17
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Solution
The fourth proportional to 438.23, 656.99 and 164.17 is: 246.12
Step by Step Solution
- Step 1: Write the proportion equation
438.23 : 656.99 = 164.17 : x - Step 2: Convert to fraction form
438.23/656.99 = 164.17/x - Step 3: Cross multiply
438.23x = 656.99 × 164.17 - Step 4: Simplify right side
438.23x = 107,853.94 - Step 5: Solve for x
x = 107,853.94/438.23 - Step 6: Final answer
x = 246.12
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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.