Finding the Fourth Proportional to 165.18, 247.42 and 157.66
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Solution
The fourth proportional to 165.18, 247.42 and 157.66 is: 236.16
Step by Step Solution
- Step 1: Write the proportion equation
165.18 : 247.42 = 157.66 : x - Step 2: Convert to fraction form
165.18/247.42 = 157.66/x - Step 3: Cross multiply
165.18x = 247.42 × 157.66 - Step 4: Simplify right side
165.18x = 39,008.24 - Step 5: Solve for x
x = 39,008.24/165.18 - Step 6: Final answer
x = 236.16
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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.